
Otso
Otso Voytek 2
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Otso Voytek 2
Voytek 2 takes what the original Voytek started and makes it better. This is a fat bike that rides like a mountain bike on snowy trails. We overhauled Voytek geometry to give you a fat bike that lets you go even faster with more confidence.
Voytek 2 has adjustable geometry via the patented Tuning Chip dropout system like all Otso bikes, as well as the new GeoChip head tube system that alters geometry at the front end of the bike. It has clearance for 26” x 4.6” or 27.5” x 4.5” tires, suspension correction for a suspension fork, internal cable routing, lower standover, and several more updates.
When the snow melts, swap in a 29” plus wheelset to keep the party going all year. Voytek changed the world of fat bikes when we announced it in 2016. Voytek 2 is here to do it again.
Bike Sizing Guide
General Sizing Guide
Your Height | Frame Size (inches) | Labeled Size |
---|---|---|
4’10” – 5’1” | 13" – 14" | XS |
5’2” – 5’5” | 15" – 16" | S |
5’6” – 5’9” | 17" – 18" | M |
5’10” – 6’1” | 19" – 20" | L |
6’2” – 6’4” | 21" – 22" | XL |
6’5” and up | 23" – 24"+ | XXL |
FBC Ordering & Delivery Options
We offer four distinct pathways to purchasing your new bicycle: In-Stock Builds, Backorder Builds, Pre-Order Builds and our fully customizable Custom Program. Each option is designed to meet different needs, timelines, and levels of personalization.
In-Stock Completes
Our In-Stock Builds are mostly assembled bicycles with carefully selected components and specifications, ready for immediate purchase and shipment.
Since these models are already in our inventory, they can ship out right away, typically arriving within approximately one week. This option is ideal for customers who want a high-quality bike without any delay.
Backorder Completes
If the configuration you are seeking is not currently available in our warehouse, you may place a backorder directly through our online catalogue.
Backorder builds are in stock at our supplier's warehouse. Typical lead time is 3–5 business days to our Ontario warehouse, plus the number of days you selected for your checkout shipping option.
Pre-Order Completes
Pre-Order Builds allow you to reserve a bicycle before it has been produced or received from our suppliers. This option is perfect for upcoming models or newly released configurations.
By pre-ordering, you secure your bike in advance and can choose from the available specifications and color options. Lead times vary depending on production and delivery schedules, but Pre-Orders guarantee you won’t miss out on the latest builds.
Custom Program
For those seeking the highest level of personalization, our Custom Program offers the opportunity to design a bicycle tailored precisely to your preferences and riding style.
While the build process may require additional time, this program provides unparalleled flexibility. Customers may select their preferred Frame, Drivetrain Kit, Cockpit Kit, Wheelset, Tires, Color Options, and a wide range of additional components, ensuring the final build reflects both performance requirements and aesthetic choices.
Returns
All Complete Bike purchases are FINAL SALE.
For all other items, our general return policy allows returns within 15 days of receipt, provided the item(s) are unused and in their original packaging.
This does not include Clearance items and Complete Bikes which are final sale. Please make your return request through email (eh@fatbikes.ca) noting the item (s) you would like to return.
Those items must be in their original packaging and in the very condition you received them.
Please note that we have a ‘Restocking Fee’ of 15% for any and all products returned if you had received free shipping with your order. If your original shipping and handling was a higher rate than 15% of the purchase that will be the charge instead.
So please insure proper compatibility before proceeding with an order. You are responsible for the full cost of shipping your return back to us.
There may be certain items that are Non-Refundable and cannot be returned such as various wearables/underwear
All Clearance items are Final Sale. Weekly Deals + Specials offer the same return and exchange policy as regular items.
Otso Voytek 2 Key Features
Learn more about this awesome bike!

Tire Clearance and Wheel Swapping
The Voytek 2 adapts to any season, fitting 26" x 4.6", 27.5" x 4.5", or 29" x 3.0" tires, thanks to a 5mm rear hub offset for wide clearance and chain rub prevention. Use 26" x 4.0" tires for snowy trails and switch to 29" wheels for dry, dirt-packed conditions.
Tuning Chip Rear Dropout System
Otso bikes feature the patented Tuning Chip rear dropout system, allowing riders to adjust the wheelbase by 20mm, the bottom bracket height by 4mm, and the head tube angle by ±0.5º. This system offers three settings: a rear position for stability in deep snow, a front position for responsive handling on packed trails, and a middle position for balanced performance.
Narrow Q-Factor
Voytek 2 feels more like riding a mountain bike than a bike built for 26" x 4.6" tires because it has a narrow Q factor. The Q factor of a bike is the distance between the outer surfaces of your two crank-arms. The 83mm bottom bracket standard of the Voytek 2 allows for the narrowest Q factor of any fat bike
Fat Bike Performance Evolved
Otso Voytek 2
Voytek 2 takes what the original Voytek started and makes it better. This is a fat bike that rides like a mountain bike on snowy trails. We overhauled Voytek geometry to give you a fat bike that lets you go even faster with more confidence.
Voytek 2 has adjustable geometry via the patented Tuning Chip dropout system like all Otso bikes, as well as the new GeoChip head tube system that alters geometry at the front end of the bike. It has clearance for 26" x 4.6" or 27.5" x 4.5" tires, suspension correction for a suspension fork, internal cable routing, lower standover, and several more updates.
When the snow melts, swap in a 29" plus wheelset to keep the party going all year. Voytek changed the world of fat bikes when we announced it in 2016. Voytek 2 is here to do it again.

Narrow Q Factor
Voytek 2 feels more like riding a mountain bike than a bike built for 26" x 4.6" tires because it has a narrow Q factor.
The Q factor of a bike is the distance between the outer surfaces of your two crank-arms. The 83mm bottom bracket standard of the Voytek 2 allows for the narrowest Q factor of any fat bike.
Benefits of a narrow Q factor include: agile handling, stronger power transfer, more efficient pedaling, increased overall performance, and a more natural ride-feel because the bike is closer to your normal biomechanics.
Adjustable Geometry
When pairing the GeoChip head tube system with the Tuning Chip rear dropout system, Voytek 2 geometry has unprecedented adjustability.
Pair a long wheelbase with a slack head tube angle for a stable ride in deep snow.
Pair a short wheelbase with a steeper head tube angle for a responsive ride on packed, tacky snow. Or mix and match based on your riding style.

Tuning Chip Rear Dropout System
Many Otso bikes are equipped with adjustable geometry via our patented Tuning Chip rear dropout system.
The Tuning Chip can adjust the wheelbase by up to 20mm, raise or lower the bottom bracket by up to 4mm, and adjust the head tube angle by +/- 0.5º.
With the machined aluminum flip chip in the rear position, Voytek 2 has a longer wheelbase, lower bottom bracket, and slacker head tube angle for confidence and stability in deeper snow.
Use the front position for more responsive handling on packed trails with tight turns. A middle position chip pairs the best of both worlds.

Tire Clearance and Wheel Swapping
Voytek 2 can fit 26" x 4.6" or 27.5" x 4.5" tires on the stock rims. A full breakdown of tire/rim pairings can be found below in the Tech Specs.
To achieve this wide tire clearance with an extremely narrow bottom bracket, the rear hub has a 5mm outboard offset to prevent chain rub. Voytek 2 can also fit 29" x 3.0" tires.
So when the trails are packed with snow, ride 26" x 4.0" tires, then when the snow melts and the trails turn to dirt, swap in your 29" wheelset for plus mountain bike riding.
Voytek 2 was designed to accommodate multiple wheel sizes without compromising ride quality.
Customize Reach and Head Tube Angle
GeoChip is a new integrated system that allows you to adjust reach and head tube angle. Three sets of flip chips nest in the frame and hold the headset upper and lower cups.
One set of GeoChip flip chips allows for +/- 10mm of reach adjustment, another allows for +/- 1º of head tube angle adjustment, and the third allows for +/- 2º of head tube angle adjustment.
This means that you can easily adjust your reach or head tube angle at home based on the riding ahead. With two reach options for each bike due to GeoChip, Voytek 2 effectively has eight frame sizes.
Build Kits
Component | Voytek 2 SLX | Voytek 2 XT | Custom Bike Configurator |
---|---|---|---|
Frame | Carbon, Tuning Chip® dropout system, GeoChip Head Tube system | Carbon, Tuning Chip® dropout system, GeoChip Head Tube system | Carbon, Tuning Chip® dropout system, GeoChip Head Tube system |
Fork | Lithic Carbon Fat Fork, 150x15 thru axle | Lithic Carbon Fat Fork, 150x15 thru axle | Lithic Carbon Fat Fork, 150x15 thru axle |
Headset | Wolf Tooth Performance headset, black | Wolf Tooth Performance headset, black | Wolf Tooth, Custom Options |
Rear derailleur | Shimano SLX M7100, 12-speed | Shimano Deore XT M8100, 12-speed | Custom Options |
Front derailleur | N/A | N/A | N/A |
Shifter | Shimano SLX M7100, 12-speed | Shimano Deore XT M8100, 12-speed | Custom Options |
Cassette | Shimano SLX M7100, 10-51T, 12-speed | Shimano Deore XT M8100, 10-51T, 12-speed | Custom Options |
Brakes | Shimano Deore M4100 | Shimano Deore XT M8100 | Custom Options |
Cranks | Race Face Aeffect, Wolf Tooth CAMO 30T Round Chainring: 170mm S | 170mm M | 175mm L | 175mm XL | Race Face Next SL Carbon, Wolf Tooth CAMO 30T Round Chainring: 170mm S | 170mm M | 175mm L | 175mm XL | Custom Options |
Bottom bracket | Race Face, PF107, Ø41mm | Race Face, PF107, Ø41mm | Race Face, PF107, Ø41mm |
Handlebar | Aluminum, 31.8mm x 780mm, 20mm rise | FSA SL-K PRO 18 Riser Handlebar 31.8x760mm, 18mm rise | Custom Options |
Grips | Wolf Tooth Fat Paw Grips, black | Wolf Tooth Fat Paw Grips, black | Wolf Tooth, Custom Options |
Stem | Aluminum +/- 7: 50mm S | 60mm M | 70mm L | 80mm XL | Aluminum +/- 7: 50mm S | 60mm M | 70mm L | 80mm XL | Custom Options |
Seatpost | Aluminum, 31.6mm x 400mm | FSA SL-K Carbon, 31.6mm x 400mm | Custom Options |
Seatpost clamp | Wolf Tooth 34.9mm, black | Wolf Tooth 34.9mm, black | Wolf Tooth 34.9mm, Custom Options |
Saddle | WTB Silverado | WTB Silverado | WTB Silverado |
Wheels | SUNringle Mulefut 80, 74mm inner width, 150x15 thru axle front, 177x12 thru axle rear: 26" S | 26" M | 27.5" L | 27.5" XL | SUNringle Mulefut 80, 74mm inner width, 150x15 thru-axle front, 177x12 thru-axle rear: 26" S | 26" M | 27.5" L | 27.5" XL | Custom Options |
Tires | Terrene Cake Eater: 26x4.0 S | 26x4.0 M | 27.5x4.0 L | 27.5x4.0 XL | Terrene Cake Eater: 26x4.0 S | 26x4.0 M | 27.5x4.0 L | 27.5x4.0 XL | Custom Options |
Chain | Shimano SLX 12-speed | Shimano SLX 12-speed | Custom Options |
Frame Sizes | S, M, L, XL | S, M, L, XL | S, M, L, XL |
Weight (size M) | 25.4 lbs with rigid fork, tubeless | 24.4 lbs with rigid fork, tubeless | Varies |