LOOKS CAN BE DECEIVING
Bears appear to be slow, lumbering creatures; but appearances can be deceiving. If you've ever been chased down by a bear – and we hope you never have (or will be) – you know they are quite fast. The same is true of Voytek.
Named after a Nazi fighting bear, Voytek is an exceptional creature. It has the 'go anywhere' benefits of a fat bike but rides (and handles) like a mountain bike.
WHEELIES GALORE!
The Voytek can run a wide range of wheel sizes – from 27.5+ MTB tires to 26x4.6-inch fat tires.
NARROW Q-FACTOR
Voytek’s narrow Q-factor helps reduce the breeze between your knees! It’s also what makes Voytek ride like a traditional mountain bike.
PLUS-FAT SYSTEM
Two tire sizes. One set of wheels. Plus AND fat, Voytek does that!
TUNING CHIP™
The patent pending Tuning Chip™ system provides 20mm of chainstay length and 4mm of bottom bracket height adjustment, allowing you to fine tune your ride.
AND SO MUCH MORE ...
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.
PROPORTIONAL SIZING
We invested extra time and money making sure every important dimension is adjusted for each frame size to give every rider the best fit possible, from smallest to tallest.
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.
100% CARBON, ZERO COMPROMISE
Voytek's 100% EPS molded carbon fiber provides smooth interior walls and optimized carbon compaction with no aluminum inserts or structural fiberglass.
SUSPENSION CORRECT
Voytek's suspension-corrected geometry is compatible with an Otso™ carbon rigid fork or up to 120 mm travel suspension fork.
HAVE RACKS? WILL TRAVEL
Numerous integrated but well-hidden rack and fender mounts are quite useful to more adventure-minded riders.
HIP TO THE DROP
The Voytek frame is compatible with internally routed dropper seat posts.
QUALITY ASSURED
Designed by the Otso engineering team, Voytek frames are manufactured in one of the premiere carbon fiber factories in Taiwan and come with a two-year limited warranty. All bikes are inspected and assembled at our headquarters in Minneapolis, MN USA.
TECHNICAL DETAILS
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Base Build
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Frame Specs
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Geometry
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Tires & Rims
|
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 |
Cane Creek 10 Series, IS41/IS52, with Wolf Tooth spacers and stem cap |
|
Rear derailleur |
Shimano SLX, 11 speed |
|
Front derailleur |
None, 1x only bike |
|
Shifters |
Shimano SLX Trigger, 11 speed |
|
Cassette |
Shimano SLX, 11-46t, 11 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 |
Lock-on 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 HG-11X |
|
Frame Sizes |
S, M, L, XL |
|
Weight (size M) |
25.4 lbs with rigid fork set up tubeless |
|
Bottom bracket standard |
83mm (Press Fit 107) |
|
Q-factor |
183mm with Race Face Next SL crankset, 188mm with Race Face Aeffect crankset |
|
Maximum chainring size |
36T round or 34T oval |
|
Front derailleur type |
None. 1x only bike. |
|
Headset |
IS41 upper, IS52 lower |
|
Seatpost diameter |
Ø30.9mm, accommodates internally routed dropper post |
|
Seatpost clamp |
Ø34.9mm |
|
Front/rear hub standard |
150x15mm thru axle / 177x12mm thru axle |
|
Front/rear axle |
Ø15x150mm, TP = 1.5, TL = 12mm / Ø12x216mm, TP = 1.5, TL = 14mm |
|
Derailleur hanger |
Tuning Chip Right Dropout |
|
Rear brake (rotor) |
74mm post (160mm native, 180mm max) |
|
Front brake (rotor) |
74mm post (160mm native, 180mm max) |
|
Fork axle-to-crown |
485mm, suspension corrected to 100-120mm travel forks |
|
Fork offset |
51mm |
|
Bare frame weight (size M) |
1350g |
|
Fork weight (Otso rigid fork) |
650g |
|
Tire clearance (frame) |
Up to 26 x 4.0" in forward Tuning Chip position, up to 26 x 4.6" in middle and back position |
|
Tire clearance (fork) |
Up to 26 x 4.8" on 100mm rim |
|
120mm fork note |
Using a 120mm suspension fork with slacken the head tube angle by 0.5˚ |
| S | M | L | XL | |
|
Recommended rider height |
4'9"-5'5" |
5'4-5'9" |
5'8"-6'1" |
6'0"-6'7" |
|
Recommended rider inseam |
29"-32" |
31"-33" |
32"-35" |
34"-37" |
|
Effective top tube |
585mm |
610mm |
630mm |
645mm |
|
Nominal head tube angle (rigid and 100mm suspension fork) |
69° |
69° |
69° |
69° |
|
Nominal head tube angle (120mm suspension fork) |
68.5° |
68.5° |
68.5° |
68.5° |
|
Tuning Chip induced head/seat tube angle change |
±0.2° |
±0.2° |
±0.2° |
±0.2° |
|
Head tube length |
90mm |
115mm |
130mm |
150mm |
|
Nominal seat tube angle |
73° |
73° |
73° |
73° |
|
Seat tube length |
381mm |
432mm |
483mm |
533mm |
|
Bottom bracket drop |
58-62mm |
58-62mm |
58-62mm |
58-62mm |
|
Chainstay length |
430-450mm |
430-450mm |
430-450mm |
430-450mm |
|
Wheelbase |
1092-1112mm |
1118-1138mm |
1139-1159mm |
1156-1176mm |
|
Trail |
85.5mm |
85.5mm |
85.5mm |
85.5mm |
|
Fork offset |
51mm |
51mm |
51mm |
51mm |
|
Rigid fork axle to crown length |
485mm |
485mm |
485mm |
485mm |
|
Stack |
581mm |
602mm |
616mm |
634mm |
|
Reach |
407mm |
426mm |
442mm |
451mm |
|
Standover |
697mm |
739mm |
780mm |
815mm |
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