Mountain

So here it is. The Rhythm is back. Only this time it moves to your beat. The NEW Rhythm is a 26” wheel aluminium JUMP/PUMP/4X/PLAY bike frame, built for big airs, endless laps, and elbow to elbow antics. - 26" wheeled aluminum JUMP/PUMP/4X/PLAY frame built for big airs, endless laps, and elbow to elbow antics - 6061 T6 aluminum alloy frameset - Two lengths available - Interchangeable dropouts: 12x142mm geared or 135x10mm single speed (DROPOUTS NOT INCLUDED WITH FRAME) - Sliding dropout system for chain tensioning and adjusting chainstay length - Compatible with 100-140mm forks - Fits tires up to 26x2.5" - PM 160mm disc brake mounts - 34.9mm seat clamp and additional stickers included

Big adventures require a bike that can rise to the occasion. Arctodus is named after Arctodus simus, an Ice Age behemoth that was the largest bear to ever walk the Earth. Like its namesake, Arctodus the bike is versatile, strong, and ready to explore. It has adjustable geometry, a durable steel frame, a massive front triangle for a frame bag, lots of cargo mounts, and can clear the biggest fat bike tires on the market. Arctodus is ready for afternoon exploration, polar expeditions, and everything in between. THE BIGGEST TIRE CLEARANCE Arctodus was built around a 26" x 4.8" tire for optimal handling and control on loose trails. It can fit the biggest fat bike tires in the world. The biggest fat tire on the market is 26" x 5.05" and Arctodus eats them like a snack with room to spare. Same as 27.5" x 4.5", which is the biggest 27.5" tire available. Arctodus is the only bike to clear tires this big with a 12-speed drivetrain without chain interference. When a bike is created for big rides with fresh snow, it needs to fit tires that were designed for the same reason. This is a bike that prays for snow and cuts its own trail. ONE BIKE, THREE WHEELBASE LENGTHS A key feature in all Otso bikes is adjustable geometry and the ability to adapt the bike for the ride ahead. The patented Tuning Chip rear dropout system can change wheelbase length by up to 20mm, raise or lower the bottom bracket height by up to 4mm, and change the head tube angle by +/.5º. Use the rear position when the trails are loose and you need as much control as you can get. Use the front position when the snow is firm and the trails let you take turns with a little speed. No matter the conditions, Arctodus has an answer. DESIGNED FOR EXPLORING There's no need to wait for the trail groomer. Arctodus was made for foot trails, forest paths, and snow-covered frozen lakes. The bombproof steel frame can withstand the demands of an expedition. A large front triangle can fit a healthy full-frame bag. The carbon fork has mounts on either side for cargo. A rear frame can be attached via mounts on the seat stays and Tuning Chip hardware. Even the geometry is catered for exploration, with extra trail for optimal flotation and bottom bracket height that will ride above deeper snow. Whether you're exploring local trails or a national forest, you can trust Arctodus to keep you riding. NARROW Q FACTOR Arctodus has a 100mm bottom bracket. This is 30-40mm narrower than other fat bikes that have the same tire clearance. Ride with massive tires without compromising handling. SUSPENSION CORRECT All Otso frames feature suspension-corrected geometry. Arctodus is compatible with suspension forks that have up to 120mm of travel. A few options are available on the Custom Bike Builder. STABILITY & FLOATATION Arctodus geometry was designed for optimal riding on fresh trails. The 68º head tube angle paired with massive tires gives Arctodus more trail than other fat bikes. Even the BB height was selected for clearance in deep snow. DROPPER COMPATIBLE Snowy trails are good with dropper posts, too. A port near the bottom bracket fits a cable and housing for a cable-actuated dropper post.

Big adventures require a bike that can rise to the occasion. Arctodus is named after Arctodus simus, an Ice Age behemoth that was the largest bear to ever walk the Earth. Like its namesake, Arctodus the bike is versatile, strong, and ready to explore. It has adjustable geometry, a durable steel frame, a massive front triangle for a frame bag, lots of cargo mounts, and can clear the biggest fat bike tires on the market. Arctodus is ready for afternoon exploration, polar expeditions, and everything in between. THE BIGGEST TIRE CLEARANCE Arctodus was built around a 26" x 4.8" tire for optimal handling and control on loose trails. It can fit the biggest fat bike tires in the world. The biggest fat tire on the market is 26" x 5.05" and Arctodus eats them like a snack with room to spare. Same as 27.5" x 4.5", which is the biggest 27.5" tire available. Arctodus is the only bike to clear tires this big with a 12-speed drivetrain without chain interference. When a bike is created for big rides with fresh snow, it needs to fit tires that were designed for the same reason. This is a bike that prays for snow and cuts its own trail. ONE BIKE, THREE WHEELBASE LENGTHS A key feature in all Otso bikes is adjustable geometry and the ability to adapt the bike for the ride ahead. The patented Tuning Chip rear dropout system can change wheelbase length by up to 20mm, raise or lower the bottom bracket height by up to 4mm, and change the head tube angle by +/.5º. Use the rear position when the trails are loose and you need as much control as you can get. Use the front position when the snow is firm and the trails let you take turns with a little speed. No matter the conditions, Arctodus has an answer. DESIGNED FOR EXPLORING There's no need to wait for the trail groomer. Arctodus was made for foot trails, forest paths, and snow-covered frozen lakes. The bombproof steel frame can withstand the demands of an expedition. A large front triangle can fit a healthy full-frame bag. The carbon fork has mounts on either side for cargo. A rear frame can be attached via mounts on the seat stays and Tuning Chip hardware. Even the geometry is catered for exploration, with extra trail for optimal flotation and bottom bracket height that will ride above deeper snow. Whether you're exploring local trails or a national forest, you can trust Arctodus to keep you riding. NARROW Q FACTOR Arctodus has a 100mm bottom bracket. This is 30-40mm narrower than other fat bikes that have the same tire clearance. Ride with massive tires without compromising handling. SUSPENSION CORRECT All Otso frames feature suspension-corrected geometry. Arctodus is compatible with suspension forks that have up to 120mm of travel. A few options are available on the Custom Bike Builder. STABILITY & FLOTATION Arctodus geometry was designed for optimal riding on fresh trails. The 68º head tube angle paired with massive tires gives Arctodus more trail than other fat bikes. Even the BB height was selected for clearance in deep snow. DROPPER COMPATIBLE Snowy trails are good with dropper posts, too. A port near the bottom bracket fits a cable and housing for a cable-actuated dropper post."

Big adventures require a bike that can rise to the occasion. Arctodus is named after Arctodus simus, an Ice Age behemoth that was the largest bear to ever walk the Earth. Like its namesake, Arctodus the bike is versatile, strong, and ready to explore. It has adjustable geometry, a durable steel frame, a massive front triangle for a frame bag, lots of cargo mounts, and can clear the biggest fat bike tires on the market. Arctodus is ready for afternoon exploration, polar expeditions, and everything in between. THE BIGGEST TIRE CLEARANCE Arctodus was built around a 26" x 4.8" tire for optimal handling and control on loose trails. It can fit the biggest fat bike tires in the world. The biggest fat tire on the market is 26" x 5.05" and Arctodus eats them like a snack with room to spare. Same as 27.5" x 4.5", which is the biggest 27.5" tire available. Arctodus is the only bike to clear tires this big with a 12-speed drivetrain without chain interference. When a bike is created for big rides with fresh snow, it needs to fit tires that were designed for the same reason. This is a bike that prays for snow and cuts its own trail. ONE BIKE, THREE WHEELBASE LENGTHS A key feature in all Otso bikes is adjustable geometry and the ability to adapt the bike for the ride ahead. The patented Tuning Chip rear dropout system can change wheelbase length by up to 20mm, raise or lower the bottom bracket height by up to 4mm, and change the head tube angle by +/- 0.5º. Use the rear position when the trails are loose and you need as much control as you can get. Use the front position when the snow is firm and the trails let you take turns with a little speed. No matter the conditions, Arctodus has an answer. DESIGNED FOR EXPLORING There's no need to wait for the trail groomer. Arctodus was made for foot trails, forest paths, and snow-covered frozen lakes. The bombproof steel frame can withstand the demands of an expedition. A large front triangle can fit a healthy full frame bag. The carbon fork has mounts on either side for cargo. A rear frame can be attached via mounts on the seat stays and Tuning Chip hardware. Even the geometry is catered for exploration, with extra trail for optimal flotation and bottom bracket height that will ride above deeper snow. Whether you're exploring local trails or a national forest, you can trust Arctodus to keep you riding. NARROW Q FACTOR Arctodus has a 100mm bottom bracket. This is 30-40mm narrower than other fat bikes that have the same tire clearance. Ride with massive tires without compromising handling. SUSPENSION CORRECT All Otso frames feature suspension-corrected geometry. Arctodus is compatible with suspension forks that have up to 120mm of travel. A few options are available on the Custom Bike Builder. STABILITY & FLOATATION Arctodus geometry was designed for optimal riding on fresh trails. The 68º head tube angle paired with massive tires gives Arctodus more trail than other fat bikes. Even the BB height was selected for clearance in deep snow. DROPPER COMPATIBLE Snowy trails are good with dropper posts, too. A port near the bottom bracket fits a cable and housing for a cable-actuated dropper post.

Voytek changes the fat bike game. It is fast, lightweight, agile, and can handle even the sharpest turns of your local singletrack with ease. Think of it as a mountain bike that can fit fat tires with adjustable geometry. We paired a narrow pedal stance—aka Q factor—with aggressive XC race geometry to build a fat bike that can intuitively handle snowy trails like your mountain bike can handle summer singletrack without sacrificing ride quality. When the weather turns and the snow turns to dirt, swap out the 26" fat wheelset for a 29" MTB wheelset to keep the party going all year. THE Q-FACTOR IS THE KEY The Voytek has the narrowest Q-factor of any fat bike in the world at 183mm. With a narrow Q-factor, your weight is closer to the centerline of the bike. This is especially important when cornering because it allows for tight, responsive control—the wider Q-factor found on most fat bikes spreads out your pedals and creates a floppy, unstable feel. The Voytek frame was designed around an 83mm bottom bracket, where most fat bikes have a bottom bracket north of the 100-110mm range. With the Voytek, you don't need to compromise agile handling to ride up to 4.6" tires. ONE BIKE, THREE WHEELBASE LENGTHS Our Tuning Chip rear dropout is at the heart of the versatile Voytek. With a quick change in positions, the wheelbase of the Voytek can be extended or shortened by up to 20mm, which also changes bottom bracket height by up to 4mm and head tube angle by +/- 0.5º. In the forward position, you've got an aggressive, responsive Voytek for your next race. In the rear position, you've got that same intuitive handling but with added stability to make it easier to ride in deep snow or adverse terrain. In the middle, well, that's the best of both worlds. PLUS OR FAT? FAT OR PLUS? We're internally divided here as to whether the Voytek is a plus bike that can handle fat tires or if the Voytek is a fat bike that has the handling worthy of a plus bike. When the trails are packed with snow, we're riding 4" tires. When spring comes and the trails turn to dirt, we swap out tires and ride 29" plus until winter returns. The versatility of the Voytek blurs the lines of plus and fat, keeping the party going all year long. MODERN GEOMETRY Voytek's longer top tube, short chainstays—the shortest in the world for a fat bike—and slightly slacker head tube angle mean more speed and more fun. SUSPENSION CORRECT Voytek's suspension-corrected geometry is compatible with an Otso carbon rigid fork or up to 120 mm travel suspension fork. COMPETITOR TESTED, ISO APPROVED Voytek's patent-pending frame design exceeds all ISO frame safety standards and has been proven over thousands of miles of test riding, including the legendary Iditarod Invitational and Arrowhead 135 competitions. DROPPER COMPATIBLE The EPS molded carbon frame of the Voytek was designed to accept internally routed dropper seat posts.

Voytek changes the fat bike game. It is fast, lightweight, agile, and can handle even the sharpest turns of your local single-track with ease. Think of it as a mountain bike that can fit fat tires with adjustable geometry. We paired a narrow pedal stance-aka Q factor - with aggressive XC race geometry to build a fat bike that can intuitively handle snowy trails like your mountain bike can handle summer single-track without sacrificing ride quality. When the weather turns and the snow turns to dirt, swap out the 26" fat wheelset for a 29" MTB wheelset to keep the party going all year. THE Q-FACTOR IS THE KEY The Voytek has the narrowest Q-factor of any fat bike in the world at 183mm. With a narrow Q-factor, your weight is closer to the centerline of the bike. This is especially important when cornering because it allows for tight, responsive control - the wider Q-factor found on most fat bikes spreads out your pedals and creates a floppy, unstable feel. The Voytek frame was designed around an 83mm bottom bracket, whereas most fat bikes have a bottom bracket north of the 100-110mm range. With the Voytek, you don't need to compromise agile handling to ride up to 4.6" tires. ONE BIKE, THREE WHEELBASE LENGTHS Our Tuning Chip rear dropout is at the heart of the versatile Voytek. With a quick change in positions, the wheelbase of the Voytek can be extended or shortened by up to 20mm, which also changes the bottom bracket height by up to 4mm and the head tube angle by +/.5º. In the forward position, you've got an aggressive, responsive Voytek for your next race. In the rear position, you've got that same intuitive handling but with added stability to make it easier to ride in deep snow or adverse terrain. In the middle, well, that's the best of both worlds. PLUS OR FAT? FAT OR PLUS? We're internally divided here as to whether the Voytek is a plus bike that can handle fat tires or if the Voytek is a fat bike that has the handling worthy of a plus bike. When the trails are packed with snow, we're riding 4" tires. When spring comes and the trails turn to dirt, we swap out tires and ride 29" plus until winter returns. The versatility of the Voytek blurs the lines of plus and fat, keeping the party going all year long. MODERN GEOMETRY Voytek's longer top tube, short chainstays – the shortest in the world for a fat bike – and slightly slacker head tube angle mean more speed and more fun. SUSPENSION CORRECT Voytek's suspension-corrected geometry is compatible with an Otso carbon rigid fork or up to 120 mm travel suspension fork. COMPETITOR TESTED, ISO APPROVED Voytek's patent-pending frame design exceeds all ISO frame safety standards and has been proven over thousands of miles of test riding, including the legendary Iditarod Invitational and Arrowhead 135 competitions. DROPPER COMPATIBLE The EPS molded carbon frame of the Voytek was designed to accept internally routed dropper seat posts.

The Hoot Ti is a premium titanium hardtail that was designed for bringing the fun to any line on the trail. The frame tubing is the 3Al/2.5V grade 9 titanium that has been an industry favorite for decades. This titanium tubing was selected because it is lightweight, lively, and emphasizes the playful Hoot Ti geometry. The bike features a custom Fox 36 Performance Elite Fork with 140mm of travel to optimize the Hoot Ti ride experience. 3-D titanium printing in the UDH rear dropouts and chainstay yoke pair with short stays for a playful ride. However you choose to ride this titanium hardtail, it’s guaranteed to be a Hoot. PLAYFUL GEOMETRY The geometry of Hoot Ti has one goal: fun. The 425mm chainstays are core to Hoot Ti because they add nimble, playful handling. The 65º head tube and 76º seat tube angles pair for a balanced riding position, while that slack head tube angle, long reach, and low bottom bracket drop of 60mm allow for confident downhill riding on aggressive trails. A shorter standover and lower top tube allow for longer travel dropper posts and more creative, playful riding without the bike getting in the way. Every detail of Hoot Ti contributes to a bike that will bring the party to any trail ride. TITANIUM FRAME The titanium tubing used in the Hoot Ti frame is the 3Al/2.5V grade 9 titanium tubing that has been an industry favorite for decades. This specific frame material was chosen because it is lightweight, lively, and responsive. These are necessary qualities for tubing that need to live up to the playful requirements of the Hoot Ti geometry. 3-D TITANIUM PRINTING The key to bringing Hoot Ti to life. 3-D titanium printing is present in the rear dropouts and the chainstay yoke. Otso engineers leveraged this technology to give Hoot Ti short 425mm chainstays while maintaining the 29” x 2.6” tire clearance. This also allowed for a hidden dropper post routing port behind the BB shell and twin cable clamps that are molded into the chainstay yoke. 3-D titanium printing is also featured at the rear UDH dropouts for a clean look and a brake mount inside the rear triangle. CUSTOM FORK Hoot Ti is built with a custom Fox 36 Performance Elite 140mm travel fork. While any 140mm fork will work with Hoot Ti, Otso engineers worked directly with Fox for this custom option because they wanted the 36mm stanchion of the Fox 36 with the 140mm travel of the Fox 34. This sturdier stanchion is better suited for aggressive, chunky trail riding. The fork features the new Grip X damper, a 44mm offset, bleeders on the fork lower, and black stanchions with black lowers for a stealth look.

Big adventures require a bike that can rise to the occasion. Arctodus is named after Arctodus simus, an Ice Age behemoth that was the largest bear to ever walk the Earth. Like its namesake, Arctodus the bike is versatile, strong, and ready to explore. It has adjustable geometry, a durable steel frame, a massive front triangle for a frame bag, lots of cargo mounts, and can clear the biggest fat bike tires on the market. Arctodus is ready for afternoon exploration, polar expeditions, and everything in between. - The Biggest Tire Clearance Arctodus was built around a 26" x 4.8" tire for optimal handling and control on loose trails. It can fit the biggest fat bike tires in the world. The biggest fat tire on the market is 26" x 5.05" and Arctodus eats them like a snack with room to spare. Same as 27.5" x 4.5", the biggest 27.5" tire available. Arctodus is the only bike to clear tires this big with a 12-speed drivetrain without chain interference. When a bike is created for big rides with fresh snow, it needs to fit tires that were designed for the same reason. This is a bike that prays for snow and cuts its own trail. - One Bike, Three Wheelbase Lengths A key feature in all Otso bikes is adjustable geometry and the ability to adapt the bike for the ride ahead. The patented Tuning Chip rear dropout system can change wheelbase length by up to 20mm, raise or lower the bottom bracket height by up to 4mm, and change the head tube angle by +/- 0.5º. Use the rear position when the trails are loose and you need as much control as you can get. Use the front position when the snow is firm and the trails let you take turns with a little speed. No matter the conditions, Arctodus has an answer. - Designed for Exploring There's no need to wait for the trail groomer. Arctodus was made for foot trails, forest paths, and snow-covered frozen lakes. The bombproof steel frame can withstand the demands of an expedition. A large front triangle can fit a healthy full-frame bag. The carbon fork has mounts on either side for cargo. A rear frame can be attached via mounts on the seat stays and Tuning Chip hardware. Even the geometry is catered for exploration, with extra trail for optimal flotation and bottom bracket height that will ride above deeper snow. Whether you're exploring local trails or a national forest, you can trust Arctodus to keep you riding. - Narrow Q Factor Arctodus has a 100mm bottom bracket. This is 30-40mm narrower than other fat bikes that have the same tire clearance. Ride with massive tires without compromising handling. - Suspension Correct All Otso frames feature suspension-corrected geometry. Arctodus is compatible with suspension forks that have up to 120mm of travel. A few options are available on the Custom Bike Builder. - Stability and Floatation Arctodus geometry was designed for optimal riding on fresh trails. The 68º head tube angle paired with massive tires gives Arctodus more trail than other fat bikes. Even the BB height was selected for clearance in deep snow. - Dropper Compatible Snowy trails are good with dropper posts, too. A port near the bottom bracket fits a cable and housing for a cable-actuated dropper post.

Voytek changes the fat bike game. It is fast, lightweight, agile, and can handle even the sharpest turns of your local singletrack with ease. Think of it as a mountain bike that can fit fat tires with adjustable geometry. We paired a narrow pedal stance-aka Q factor -with aggressive XC race geometry to build a fat bike that can intuitively handle snowy trails like your mountain bike can handle summer singletrack without sacrificing ride quality. When the weather turns and the snow turns to dirt, swap out the 26" fat wheelset for a 29" MTB wheelset to keep the party going all year. THE Q-FACTOR IS THE KEY The Voytek has the narrowest Q-factor of any fat bike in the world at 183mm. With a narrow Q-factor, your weight is closer to the centerline of the bike. This is especially important when cornering because it allows for tight, responsive control - the wider Q-factor found on most fat bikes spreads out your pedals and creates a floppy, unstable feel. The Voytek frame was designed around an 83mm bottom bracket, whereas most fat bikes have a bottom bracket north of the 100-110mm range. With the Voytek, you don't need to compromise agile handling to ride up to 4.6" tires. ONE BIKE, THREE WHEELBASE LENGTHS Our Tuning Chip rear dropout is at the heart of the versatile Voytek. With a quick change in positions, the wheelbase of the Voytek can be extended or shortened by up to 20mm, which also changes the bottom bracket height by up to 4mm and the head tube angle by +/.5º. In the forward position, you've got an aggressive, responsive Voytek for your next race. In the rear position, you've got that same intuitive handling but with added stability to make it easier to ride in deep snow or adverse terrain. In the middle, well, that's the best of both worlds. PLUS OR FAT? FAT OR PLUS? We're internally divided here as to whether the Voytek is a plus bike that can handle fat tires or if the Voytek is a fat bike that has the handling worthy of a plus bike. When the trails are packed with snow, we're riding 4" tires. When spring comes and the trails turn to dirt, we swap out tires and ride 29" plus until winter returns. The versatility of the Voytek blurs the lines of plus and fat, keeping the party going all year long. MODERN GEOMETRY Voytek's longer top tube, short chainstays – the shortest in the world for a fat bike – and slightly slacker head tube angle mean more speed and more fun. SUSPENSION CORRECT Voytek's suspension-corrected geometry is compatible with an Otso carbon rigid fork or up to 120 mm travel suspension fork. COMPETITOR TESTED, ISO APPROVED Voytek's patent-pending frame design exceeds all ISO frame safety standards and has been proven over thousands of miles of test riding, including the legendary Iditarod Invitational and Arrowhead 135 competitions. DROPPER COMPATIBLE The EPS molded carbon frame of the Voytek was designed to accept internally routed dropper seat posts.

The Otso Fenrir is a ride-anywhere bike for bikepacking races and afternoon adventures alike. It can be built with drop bars or with MTB bars and both selections are available as stock build options. A tire clearance of 29” x 2.6” or 27.5” x 2.8” keeps the Fenrir rolling on rough terrain, while extra frame and fork braze-ons are ready to carry gear for days or weeks on the trail. Like all Otso bikes, the Fenrir has adjustable geometry via the patented Tuning Chip rear dropout system that makes the bike as adaptable as its rider. VERSATILITY While all Otso bikes are known for their versatility, the Fenrir might be the most versatile yet. It was designed to accommodate drop bars with a 50mm stem or MTB bars with an 80mm stem. It can be built with gears or single speed, with a suspension fork or rigid, with a mechanical or electronic drivetrain, or with a dropper or rigid seat post. The ability to fully customize the build of the bike makes the Fenrir as versatile as its rider. FENRIR WITH DROP BARS The Fenrir was designed with the option to be built with drop bars or MTB bars. When configured with drop bars, the Fenrir rides like an extra-capable gravel bike. The relatively longer top tube means a shorter stem is needed with drop bars to align with the rider's preferred reach. It can be built with standard road/CX/gravel bars for rides on local trails or with wider bars to fit a handlebar roll loaded with lots of gear. FENRIR WITH FLAT BARS When built with MTB bars, Fenrir rides like a 90s XC bike. It's fun and lively, yet efficient and Capable with a capital C. It can handle any sketchy descent or technical climb with ease. Because the top tube is relatively short for a mountain bike, a longer stem (80-90mm) is ideal for maintaining reach. Ride it on your local singletrack or load 'er up for that backcountry tour that you've been dreaming about--you know the one. However you choose to build it, Fenrir will ride any road/trail on the map and carry all the gear to get you there. OPTIMIZED FOR BIKEPACKING Every last feature of Fenrir is optimized for bikepacking. The stainless steel frame is strong, comfortable, and surprisingly light weight. It can be built with flat bars or drop bars depending on your affinity for large handlebar rolls. Single speed is an option for folks who like simplicity while touring. It has extra mounts on the frame and fork for hauling all the gear you'll need for days (or weeks) on the trail. The frame and fork can clear 29" x 2.6" or 27.5" x 2.8" tires for trails that are especially gnarly. No matter your destination and how long it takes to get there, Fenrir is ready. SINGLE SPEED All metal Otso bikes have the option to be built single speed or with gears. Fenrir is included in that group because it has a small notch on the rear dropout near the Tuning Chip. If you build your Fenrir with gears, but want to convert to single speed later on, there is a single speed Tuning Chip available ready to order alongside other accessories. There's no wrong way to build your Fenrir. SO MANY MOUNTS A bikepacking bike needs to be able to carry all the gear for days or weeks on the trail. Fenrir has mounts for bottles, fenders, and racks. The Enve fork also has three-pack mounts on either side for sharing the load. CAPABLE GEOMETRY Pick a trail on the map and ride it. Fenrir has the endurance of a gravel bike, with the stability of a mountain bike. Above all, it is Capable with a capital C so you can stay the course and reach your destination. DROPPER FRIENDLY A small port near the bottom of the seat tube allows for the cable routing of a dropper post. If you don't ride with a dropper, you probably won't even notice the port. AMPLE CLEARANCE Tires need to meet demands of the trail for traction, stability, and comfort. Fenrir can ride up to 29" x 2.6" or 27.5" x 2.8" tires.

Big adventures require a bike that can rise to the occasion. Arctodus is named after Arctodus simus, an Ice Age behemoth that was the largest bear to ever walk the Earth. Like its namesake, Arctodus the bike is versatile, strong, and ready to explore. It has adjustable geometry, a durable steel frame, a massive front triangle for a frame bag, lots of cargo mounts, and can clear the biggest fat bike tires on the market. Arctodus is ready for afternoon exploration, polar expeditions, and everything in between. - The Biggest Tire Clearance Arctodus was built around a 26" x 4.8" tire for optimal handling and control on loose trails. It can fit the biggest fat bike tires in the world. The biggest fat tire on the market is 26" x 5.05" and Arctodus eats them like a snack with room to spare. Same as 27.5" x 4.5", the biggest 27.5" tire available. Arctodus is the only bike to clear tires this big with a 12-speed drivetrain without chain interference. When a bike is created for big rides with fresh snow, it needs to fit tires that were designed for the same reason. This is a bike that prays for snow and cuts its own trail. - One Bike, Three Wheelbase Lengths A key feature in all Otso bikes is adjustable geometry and the ability to adapt the bike for the ride ahead. The patented Tuning Chip rear dropout system can change wheelbase length by up to 20mm, raise or lower the bottom bracket height by up to 4mm, and change the head tube angle by +/- 0.5º. Use the rear position when the trails are loose and you need as much control as you can get. Use the front position when the snow is firm and the trails let you take turns with a little speed. No matter the conditions, Arctodus has an answer. - Designed for Exploring There's no need to wait for the trail groomer. Arctodus was made for foot trails, forest paths, and snow-covered frozen lakes. The bombproof steel frame can withstand the demands of an expedition. A large front triangle can fit a healthy full-frame bag. The carbon fork has mounts on either side for cargo. A rear frame can be attached via mounts on the seat stays and Tuning Chip hardware. Even the geometry is catered for exploration, with extra trail for optimal flotation and bottom bracket height that will ride above deeper snow. Whether you're exploring local trails or a national forest, you can trust Arctodus to keep you riding. - Narrow Q Factor Arctodus has a 100mm bottom bracket. This is 30-40mm narrower than other fat bikes that have the same tire clearance. Ride with massive tires without compromising handling. - Suspension Correct All Otso frames feature suspension-corrected geometry. Arctodus is compatible with suspension forks that have up to 120mm of travel. A few options are available on the Custom Bike Builder. - Stability and Floatation Arctodus geometry was designed for optimal riding on fresh trails. The 68º head tube angle paired with massive tires gives Arctodus more trail than other fat bikes. Even the BB height was selected for clearance in deep snow. - Dropper Compatible Snowy trails are good with dropper posts, too. A port near the bottom bracket fits a cable and housing for a cable-actuated dropper post.

The Otso Fenrir is a ride-anywhere bike for bikepacking races and afternoon adventures alike. It can be built with drop bars or with MTB bars and both selections are available as stock build options. A tire clearance of 29” x 2.6” or 27.5” x 2.8” keeps the Fenrir rolling on rough terrain, while extra frame and fork braze-ons are ready to carry gear for days or weeks on the trail. Like all Otso bikes, the Fenrir has adjustable geometry via the patented Tuning Chip rear dropout system that makes the bike as adaptable as its rider. VERSATILITY While all Otso bikes are known for their versatility, the Fenrir might be the most versatile yet. It was designed to accommodate drop bars with a 50mm stem or MTB bars with an 80mm stem. It can be built with gears or single speed, with a suspension fork or rigid, with a mechanical or electronic drivetrain, or with a dropper or rigid seat post. The ability to fully customize the build of the bike makes the Fenrir as versatile as its rider. FENRIR WITH DROP BARS The Fenrir was designed with the option to be built with drop bars or MTB bars. When configured with drop bars, the Fenrir rides like an extra-capable gravel bike. The relatively longer top tube means a shorter stem is needed with drop bars to align with the rider's preferred reach. It can be built with standard road/CX/gravel bars for rides on local trails or with wider bars to fit a handlebar roll loaded with lots of gear. FENRIR WITH FLAT BARS When built with MTB bars, Fenrir rides like a 90s XC bike. It's fun and lively, yet efficient and Capable with a capital C. It can handle any sketchy descent or technical climb with ease. Because the top tube is relatively short for a mountain bike, a longer stem (80-90mm) is ideal for maintaining reach. Ride it on your local singletrack or load 'er up for that backcountry tour that you've been dreaming about--you know the one. However you choose to build it, Fenrir will ride any road/trail on the map and carry all the gear to get you there. DESIGNED FOR BIKEPACKING Every last feature of Fenrir Ti is optimized for bikepacking. The titanium frame is strong, smooth, and lighter than steel. It can be built with flat bars or drop bars depending on your affinity for large handlebar rolls. Single speed is an option for folks who like simplicity while touring. It has extra mounts on the frame and fork for hauling all the gear you'll need for days (or weeks) on the trail. The frame and fork can clear 29" x 2.6" or 27.5" x 2.8" tires for trails that are especially gnarly. No matter your destination and how long it takes to get there, Fenrir Ti is ready. SINGLE SPEED All metal Otso bikes have the option to be built single speed or with gears. Fenrir is included in that group because it has a small notch on the rear dropout near the Tuning Chip. If you build your Fenrir with gears, but want to convert to single speed later on, there is a single speed Tuning Chip ready to order alongside other accessories. There's no wrong way to build your Fenrir. SO MANY MOUNTS A bikepacking bike needs to be able to carry all the gear for days or weeks on the trail. Fenrir has mounts for bottles, fenders, and racks. The Enve fork also has three-pack mounts on either side for sharing the load. CAPABLE GEOMETRY Pick a trail on the map and ride it. Fenrir has the endurance of a gravel bike, with the stability of a mountain bike. Above all, it is Capable with a capital C so you can stay the course and reach your destination. DROPPER FRIENDLY A small port near the bottom of the seat tube allows for the cable routing of a dropper post. If you don't ride with a dropper, you probably won't even notice the port. AMPLE CLEARANCE Tires need to meet demands of the trail for traction, stability, and comfort. Fenrir can ride up to 29" x 2.6" or 27.5" x 2.8" tires.

Voytek changes the fat bike game. It is fast, lightweight, agile, and can handle even the sharpest turns of your local single-track with ease. Think of it as a mountain bike that can fit fat tires with adjustable geometry. We paired a narrow pedal stance-aka Q factor - with aggressive XC race geometry to build a fat bike that can intuitively handle snowy trails like your mountain bike can handle summer single-track without sacrificing ride quality. When the weather turns and the snow turns to dirt, swap out the 26" fat wheelset for a 29" MTB wheelset to keep the party going all year. THE Q-FACTOR IS THE KEY The Voytek has the narrowest Q-factor of any fat bike in the world at 183mm. With a narrow Q-factor, your weight is closer to the centerline of the bike. This is especially important when cornering because it allows for tight, responsive control - the wider Q-factor found on most fat bikes spreads out your pedals and creates a floppy, unstable feel. The Voytek frame was designed around an 83mm bottom bracket, whereas most fat bikes have a bottom bracket north of the 100-110mm range. With the Voytek, you don't need to compromise agile handling to ride up to 4.6" tires. ONE BIKE, THREE WHEELBASE LENGTHS Our Tuning Chip rear dropout is at the heart of the versatile Voytek. With a quick change in positions, the wheelbase of the Voytek can be extended or shortened by up to 20mm, which also changes the bottom bracket height by up to 4mm and the head tube angle by +/.5º. In the forward position, you've got an aggressive, responsive Voytek for your next race. In the rear position, you've got that same intuitive handling but with added stability to make it easier to ride in deep snow or adverse terrain. In the middle, well, that's the best of both worlds. PLUS OR FAT? FAT OR PLUS? We're internally divided here as to whether the Voytek is a plus bike that can handle fat tires or if the Voytek is a fat bike that has the handling worthy of a plus bike. When the trails are packed with snow, we're riding 4" tires. When spring comes and the trails turn to dirt, we swap out tires and ride 29" plus until winter returns. The versatility of the Voytek blurs the lines of plus and fat, keeping the party going all year long. MODERN GEOMETRY Voytek's longer top tube, short chainstays – the shortest in the world for a fat bike – and slightly slacker head tube angle mean more speed and more fun. SUSPENSION CORRECT Voytek's suspension-corrected geometry is compatible with an Otso carbon rigid fork or up to 120 mm travel suspension fork. COMPETITOR TESTED, ISO APPROVED Voytek's patent-pending frame design exceeds all ISO frame safety standards and has been proven over thousands of miles of test riding, including the legendary Iditarod Invitational and Arrowhead 135 competitions. DROPPER COMPATIBLE The EPS molded carbon frame of the Voytek was designed to accept internally routed dropper seat posts.

Big adventures require a bike that can rise to the occasion. Arctodus is named after Arctodus simus, an Ice Age behemoth that was the largest bear to ever walk the Earth. Like its namesake, Arctodus the bike is versatile, strong, and ready to explore. It has adjustable geometry, a durable steel frame, a massive front triangle for a frame bag, lots of cargo mounts, and can clear the biggest fat bike tires on the market. Arctodus is ready for afternoon exploration, polar expeditions, and everything in between. THE BIGGEST TIRE CLEARANCE Arctodus was built around a 26" x 4.8" tire for optimal handling and control on loose trails. It can fit the biggest fat bike tires in the world. The biggest fat tire on the market is 26" x 5.05" and Arctodus eats them like a snack with room to spare. Same as 27.5" x 4.5", which is the biggest 27.5" tire available. Arctodus is the only bike to clear tires this big with a 12-speed drivetrain without chain interference. When a bike is created for big rides with fresh snow, it needs to fit tires that were designed for the same reason. This is a bike that prays for snow and cuts its own trail. ONE BIKE, THREE WHEELBASE LENGTHS A key feature in all Otso bikes is adjustable geometry and the ability to adapt the bike for the ride ahead. The patented Tuning Chip rear dropout system can change wheelbase length by up to 20mm, raise or lower the bottom bracket height by up to 4mm, and change the head tube angle by +/.5º. Use the rear position when the trails are loose and you need as much control as you can get. Use the front position when the snow is firm and the trails let you take turns with a little speed. No matter the conditions, Arctodus has an answer. DESIGNED FOR EXPLORING There's no need to wait for the trail groomer. Arctodus was made for foot trails, forest paths, and snow-covered frozen lakes. The bombproof steel frame can withstand the demands of an expedition. A large front triangle can fit a healthy full frame bag. The carbon fork has mounts on either side for cargo. A rear frame can be attached via mounts on the seat stays and Tuning Chip hardware. Even the geometry is catered for exploration, with extra trail for optimal flotation and bottom bracket height that will ride above deeper snow. Whether you're exploring local trails or a national forest, you can trust Arctodus to keep you riding. NARROW Q FACTOR Arctodus has a 100mm bottom bracket. This is 30-40mm narrower than other fat bikes that have the same tire clearance. Ride with massive tires without compromising handling. SUSPENSION CORRECT All Otso frames feature suspension-corrected geometry. Arctodus is compatible with suspension forks that have up to 120mm of travel. A few options are available on the Custom Biek Builder. STABILITY & FLOATATION Arctodus geometry was designed for optimal riding on fresh trails. The 68º head tube angle paired with massive tires gives Arctodus more trail than other fat bikes. Even the BB height was selected for clearance in deep snow. DROPPER COMPATIBLE Snowy trails are good with dropper posts, too. A port near the bottom bracket fits a cable and housing for a cable-actuated dropper post.

The Hoot Ti is a premium titanium hardtail that was designed for bringing the fun to any line on the trail. The frame tubing is the 3Al/2.5V grade 9 titanium that has been an industry favorite for decades. This titanium tubing was selected because it is lightweight, lively, and emphasizes the playful Hoot Ti geometry. The bike features a custom Fox 36 Performance Elite Fork with 140mm of travel to optimize the Hoot Ti ride experience. 3-D titanium printing in the UDH rear dropouts and chainstay yoke pair with short stays for a playful ride. However you choose to ride this titanium hardtail, it’s guaranteed to be a Hoot. PLAYFUL GEOMETRY The geometry of Hoot Ti has one goal: fun. The 425mm chainstays are core to Hoot Ti because they add nimble, playful handling. The 65º head tube and 76º seat tube angles pair for a balanced riding position, while that slack head tube angle, long reach, and low bottom bracket drop of 60mm allow for confident downhill riding on aggressive trails. A shorter standover and lower top tube allow for longer travel dropper posts and more creative, playful riding without the bike getting in the way. Every detail of Hoot Ti contributes to a bike that will bring the party to any trail ride. TITANIUM FRAME The titanium tubing used in the Hoot Ti frame is the 3Al/2.5V grade 9 titanium tubing that has been an industry favorite for decades. This specific frame material was chosen because it is lightweight, lively, and responsive. These are necessary qualities for tubing that need to live up to the playful requirements of the Hoot Ti geometry. 3-D TITANIUM PRINTING The key to bringing Hoot Ti to life. 3-D titanium printing is present in the rear dropouts and the chainstay yoke. Otso engineers leveraged this technology to give Hoot Ti short 425mm chainstays while maintaining the 29” x 2.6” tire clearance. This also allowed for a hidden dropper post routing port behind the BB shell and twin cable clamps that are molded into the chainstay yoke. 3-D titanium printing is also featured at the rear UDH dropouts for a clean look and a brake mount inside the rear triangle. CUSTOM FORK Hoot Ti is built with a custom Fox 36 Performance Elite 140mm travel fork. While any 140mm fork will work with Hoot Ti, Otso engineers worked directly with Fox for this custom option because they wanted the 36mm stanchion of the Fox 36 with the 140mm travel of the Fox 34. This sturdier stanchion is better suited for aggressive, chunky trail riding. The fork features the new Grip X damper, a 44mm offset, bleeders on the fork lower, and black stanchions with black lowers for a stealth look.

If there’s one thing Tom knows, it’s dirt. When he first designed the Ultra he knew it would appeal to riders who demand specific ride characteristics and dirt slaying only he could deliver- and that was in the 1980s! Good design withstands the test of time, and the latest iteration of the Ultra is a prime example. Like its predecessor from 30 years prior, the new Ultra occupies a unique ride space from cross-country riders looking to get rowdy and go big to enduro riders lusting for some all-mountain shredding. Designed around a 120mm travel fork and super stable Boost 148 spacing, most of the fun is in the wheels. Designed to accommodate 29" or 27.5" wheels, the Ultra is highly versatile. Throw on some 29s for some trail-smashing XC riding, or saddle up some 27.5+ for some serious no-holds-barred shredding. The Ultra is a rough and rugged trail master that doesn’t know when to quit. - Compatible with 27.5 x 2.8 and 29 x 2.4 tires - Internal routing for a dropper post - Boost 148x12 rear spacing

Timberjack is Salsa's aggressive trail hardtail. Its progressive trail geometry is stable on descents and technical sections, while the Alternator 2.0 dropouts allow for adjustable chainstay length to dial in ride characteristics. Ample accessory mounts and dual wheel size compatibility add more versatility to the package, making Timberjack a well-rounded ripper that likes to party.

Rangefinder is Salsa's confidence-building trail hardtail. Built for riders who want to start discovering their local trail systems, Rangefinder offers geometry and spec designed for the perfect introduction to mountain biking. Rangefinder opens up singletrack and doubletrack adventures and offers provisions for bikepacking setups so riders can expand their off-road repertoires. Rangefinder is mountain biking for the masses. - 6061-T6 alloy frame - Internally-routed shift, brake, and dropper post housing - 154 mm suspension fork and dropper post - 1x drivetrain keeps shifting simple with plenty of gear range - Hydraulic brakes offer confident stopping power - Compatible with 29" or 27.5 plus wheels and tires - Carry what you need with the integrated top tube bag mount, two bottle cage mounts in the frame on M, L, and XL sizes, one accessory mount under the down tube, and rear rack mounts

Rangefinder is Salsa's confidence-building trail hardtail. Built for riders who want to start discovering their local trail systems, Rangefinder offers geometry and spec designed for the perfect introduction to mountain biking. Rangefinder opens up singletrack and doubletrack adventures and offers provisions for bikepacking setups so riders can expand their off-road repertoires. Rangefinder is mountain biking for the masses. - 6061-T6 alloy frame - Internally-routed shift, brake and dropper post housing - 159 mm suspension fork and dropper post - 1x drivetrain keeps shifting simple with plenty of gear range - Hydraulic brakes offer confident stopping power - Compatible with 29" or 27.5 plus wheels and tires - Carry what you need with the integrated top tube bag mount, two bottle cage mounts in the frame on M, L, and XL sizes, one accessory mount under the down tube, and rear rack mounts

Fargo is Salsa's original drop bar mountain bike. A bit of a cult classic, it’s designed for mixed surface riders and bikepackers who want the versatility to take any route and the capability to carry everything needed when they’re out for days on end. The Fargo Steel's triple-butted Cobra Kai steel frame is as forgiving as it is reliable on weeks-long expeditions, while the carbon Firestarter fork pairs nicely with the frame and offers bosses and mount points for anything you’d want to attach to a bicycle fork. With an entire world of possible component setups, the Fargo Steel Frameset is a smooth-riding blank canvas you can build into the perfect tool for your two-wheeled needs.

Rangefinder is Salsa's confidence-building trail hardtail. Built for riders who want to start discovering their local trail systems, Rangefinder offers geometry and spec designed for the perfect introduction to mountain biking. Rangefinder opens up singletrack and doubletrack adventures and offers provisions for bikepacking setups so riders can expand their off-road repertoires. Rangefinder is mountain biking for the masses. - 6061-T6 alloy frame - Internally-routed shift, brake and dropper post housing - 134 mm suspension fork and dropper post - 1x drivetrain keeps shifting simple with plenty of gear range - Hydraulic brakes offer confident stopping power - Compatible with 29" or 27.5 plus wheels and tires - Carry what you need with the integrated top tube bag mount, two bottle cage mounts in the frame on M, L, and XL sizes, one accessory mount under the down tube, and rear rack mounts

Rangefinder is Salsa's confidence-building trail hardtail. Built for riders who want to start discovering their local trail systems, Rangefinder offers geometry and spec designed for the perfect introduction to mountain biking. Rangefinder opens up singletrack and doubletrack adventures and offers provisions for bikepacking setups so riders can expand their off-road repertoires. Rangefinder is mountain biking for the masses. - 6061-T6 alloy frame - Internally-routed shift, brake and dropper post housing - 139 mm suspension fork and dropper post - 1x drivetrain keeps shifting simple with plenty of gear range - Hydraulic brakes offer confident stopping power - Compatible with 29" or 27.5 plus wheels and tires - Carry what you need with the integrated top tube bag mount, two bottle cage mounts in the frame on M, L, and XL sizes, one accessory mount under the down tube, and rear rack mounts

The Mukluk is Salsa's most versatile fat bike, designed and engineered to excel in a wide variety of conditions. The frame utilizes 197mm rear spacing to accommodate up to 5" tires, and the 100mm threaded bottom bracket allows a wide range of crank (Q-factor) choices. Alternator 1.0 dropouts allow for short chainstays and easily support single speed or geared drivetrain options. The Mukluk can do it all.

Rangefinder is Salsa's confidence-building trail hardtail. Built for riders who want to start discovering their local trail systems, Rangefinder offers geometry and spec designed for the perfect introduction to mountain biking. Rangefinder opens up singletrack and doubletrack adventures and offers provisions for bikepacking setups so riders can expand their off-road repertoires. Rangefinder is mountain biking for the masses. - 6061-T6 alloy frame - Internally-routed shift, brake and dropper post housing - 124 mm suspension fork and dropper post - 1x drivetrain keeps shifting simple with plenty of gear range - Hydraulic brakes offer confident stopping power - Compatible with 29" or 27.5 plus wheels and tires - Carry what you need with the integrated top tube bag mount, two bottle cage mounts in the frame on M, L, and XL sizes, one accessory mount under the down tube, and rear rack mounts

Rangefinder is Salsa's confidence-building trail hardtail. Built for riders who want to start discovering their local trail systems, Rangefinder offers geometry and spec designed for the perfect introduction to mountain biking. Rangefinder opens up singletrack and doubletrack adventures and offers provisions for bikepacking setups so riders can expand their off-road repertoires. Rangefinder is mountain biking for the masses. - 6061-T6 alloy frame - Internally-routed shift, brake and dropper post housing - 129 mm suspension fork and dropper post - 1x drivetrain keeps shifting simple with plenty of gear range - Hydraulic brakes offer confident stopping power - Compatible with 29" or 27.5 plus wheels and tires - Carry what you need with the integrated top tube bag mount, two bottle cage mounts in the frame on M, L, and XL sizes, one accessory mount under the down tube, and rear rack mounts

The Heyday! Advent is a machine made with adventure in mind. 26 x 4.6" tires have no trouble rolling over loose terrain or tracking through overgrown paths. The aluminum frame blends durability and weight savings with stable geometry for roaming far and wide. And Heyday!'s versatility is unmatched: Alternator 2.0 dropouts allow for multiple drivetrain setups; cargo mounts let you load up for a day or a week; your wheel and tire options also include 27.5 fat and 29+. All this, paired with microSHIFT's trusty Advent wide-range 9-speed drivetrain, will remove "unrideable" from your vocabulary.

The Heyday! is Salsa’s most versatile fat bike, designed and engineered to excel in a wide variety of conditions. The frame utilizes 197 mm rear spacing to accommodate up to 5" tires, and the 100 mm threaded bottom bracket allows a wide range of crank (Q-factor) choices. Alternator 1.0 dropouts allow for short chainstays and easily support single speed or geared drivetrain options. The Heyday! can do it all. - Designed with a low and rearward center of gravity for increased stability when navigating challenging terrain - Bearpaw Aluminum fork with two sets of Three-Pack mounts - Aluminum frame includes two bottle mounts inside frame triangle and down tube mounts for a bottle, pump, repair kit, or other accessory - Alternator 1.0 dropouts - Full-length internal cable housing routing, internal dropper post routing, and 1x or 2x drivetrain compatible - Compatible with Salsa Alternator 190 Rear Rack using Salsa Rack-Lock or Post-Lock - aklsdjfl

Carbon performance, fat-tire confidence: that’s what Beargrease brings to every ride, from groomed-trail races in the dead of winter to summer trail bike duties. Beargrease is a highly nimble carbon fat-tire bike, thanks to its efficient frame, trail geometry, and 27.5" wheels. Bottle and cargo mounts on the frame and fork make it easier to fuel endurance rides or bikepacking journeys. Factor in the rock-solid Shimano Cues 11-speed drivetrain, and there’s nothing in your way.

Timberjack is Salsa's aggressive trail hardtail. Its progressive trail geometry is stable on descents and technical sections, while the Alternator 2.0 dropouts allow for adjustable chainstay length to dial in ride characteristics. Ample accessory mounts and dual wheel size compatibility add more versatility to the package, making Timberjack a well-rounded ripper that likes to party. - 6061-T6 alloy frame - Aggressive trail geometry - 130 mm fork and dropper post provide capability in technical terrain - Alternator 2.0 dropouts expand drivetrain and setup options - Short chainstays and long front-center provide agility and stability on the trail - Front triangle space is maximized for frame bag use - Internal cable routing - Compatible with 27.5+ or 29" wheels

Beargrease pairs a race-ready carbon frame with the capability of fat tires for the ultimate groomed-trail machine. Its trail geometry, dropper post, and 27.5" wheels grant you confidence in loose corners and descents and make for an all-season ripper. Frame and fork mounts for extra bottles and cargo make it easier to gear up for your long days out or even overnighters, and the high-performance XT/SLX drivetrain is the icing on the cake. For light-and-quick confidence on any terrain, Beargrease is one of the best carbon fat-tire bikes out there.