Otso Voytek GX Eagle

When describing a fat bike, you wouldn’t typically describe it as agile. That’s where the Voytek is different. 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.

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. With the Voytek, you don’t need to compromise agile handling to ride up to 4.6” tires.

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. 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.

The Voytek can run a wide range of wheel sizes: 27.5" or 29" plus MTB tires to 26" x 4.6" fat tires.

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.

Frame Voytek™ patented carbon frame, Tuning Chip™ dropout system, 177x12 rear hub spacing, Plus-Fat Narrow Q-factor design with PF107BB, guided internal rear derailleur routing, accommodates internally routed dropper post, external brake routing, downtube and chainstay protectors, matching allow bottle cage bolts
Fork Voytek™ rigid carbon fork, suspension corrected, tapered steerer tube, 485mm axle-to-crown, 51mm offset
Headset Wolf Tooth Precision Headset, IS42/IS52
Rear derailleur Sram GX Eagle 12-speed
Front derailleur None, 1x only bike
Shifters SRAM GXEagle Trigger, 12-speed
Cassette SRAM GXEagle 10-52, 12-speed
Brakes Magura MT4
Cranks Race Face Aeffect 83mm with 175mm crankarms and custom offset Wolf Tooth CAMO system, 32T chainring (size Small frame ships with 170mm crankarms, 170mm crankarms are available on other sizes by request)
Bottom bracket Race Face, PF107, Ø41mm
Handlebar Race Face Ride, 740mm riser
Grips Wolf Tooth silicone grips
Stem Race Face Ride (60mm standard. Other lengths available by request)
Seatpost Race Face Ride, 30.9mm
Seat WTB Volt
Wheels Lithic sealed cartridge bearing 6-bolt rotor hubs with tubeless ready 70mm Lithic Rhyolite aluminum rims. Tubeless kit upgrade available.
Tires Schwalbe Jumbo Jim 26 x 4.0 LiteSkin
Chain Shimano SLX 12-speed
Frame Sizes S, M, L, XL
Weight (size M) 25.4 lbs with rigid fork set up tubeless