



Otso
Otso Arctodus
Bike Sizing Guide
General Sizing Guide
Your Height | Frame Size (inches) | Labeled Size |
---|---|---|
4’10” – 5’2” | 13" – 14" | XS |
5’2” – 5’6” | 15" – 16" | S |
5’6” – 5’10” | 17" – 18" | M |
5’10” – 6’1” | 19" – 20" | L |
6’1” – 6’5” | 21" – 22" | XL |
6’5” and up | 23" – 24"+ | XXL |
FBC Bike Purchasing Guide
We offer four distinct pathways to purchasing your new bicycle: In-Stock Builds, Backorder Builds, Pre-Order Builds and our 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.
Shipping Rates
We ship on Mondays, Wednesdays and Fridays. If we receive your order by noon on these days we can often get your order out same day or it will go out the next shipping day with the method you have selected. We will always try to ship orders out as quickly as possible.
Shipping Rates Table - Link
Domestic orders are shipped Purolator, UPS or Loomis depending on the item and your selected service and when your order ships you will receive tracking details via email address provided. If you require an alternate shipping option or for Remote Area orders please contact us prior to placing your order and we will provide a shipping quote.
We use Purolator or UPS as our primary Express shipping services.
Free freight is not offered for Complete Bike purchases or to locations that have a Remote Destination surcharge fee.
Customers assume all shipping risks for package damage or theft of their order we recommend for high value shipments for customers to insure shipment through their own credit are card or to reach directly to use for a customer insurance quote.
SUCCESSFUL INSURANCE CLAIM OUTCOMES CANNOT BE GURANTEED.
Returns
All Complete Bike purchases and products on Clearance are FINAL SALE.
For all other Regular Priced items, our general return policy allows returns within 15 days of receipt, provided the item(s) are unused and in their original packaging.
Need a little help? We know that finding the right fat bike can be hard. Give us a call at 844-464-2453, or send us an email at eh@fatbikes.ca for pro advice!
Otso Arctodus
Big adventures require a bike that can rise to the occasion. Arctodus is named afterArctodus 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.
We have customized the Arctodus to have PURPLE seatpost clamps, headsets, headset spacers, and bolts from Wolf Tooth for that extra splash of colour to match the OTSO logo on the downtube.
THE BIGGEST TIRE CLEARANCE
ADJUSTABLE GEOMETRY
DESIGNED FOR EXPLORING
Build Kit
Frame | Chromoly with Tuning Chip™ dropout system |
Fork | Lithic carbon fat fork, suspension corrected, tapered steerer tube, 485mm axle-to-crown, 51mm offset |
Headset | Wolf Tooth Performance Headset, ZS44/EC44 |
Rear derailleur | Shimano SLX M7100, 12-speed |
Front derailleur | None, 1x only bike |
Shifters | Shimano SLX M7100 Trigger, 12-speed |
Cassette | Shimano SLX M7100, 10-51t, 12-speed |
Brakes | Magura MT4 |
Cranks | Race Face Aeffect with Wolf Tooth CAMO System P2 (+4mm offset) spider, 30T chainring |
Bottom bracket | Race Face, BSA 100mm |
Handlebar | Race Face Ride, 740mm riser |
Grips | Wolf Tooth grips |
Stem | Aluminum |
Seatpost | Aluminum, 31.6mm |
Seat | WTB Volt Medium, 142mm width |
Wheels | Lithic Rhyolite 90 26" 84mm with Lithic Hubs |
Tires | Terrene Johnny 5 Light 26"x4.8" |
Chain | Shimano SLX 12-speed |
Frame Sizes | S, M, L, XL |
*Builds are subject to slight changes based on availability. Customers will be notified *Assembly Required
Upgrade Options Tires
We have the largest selection of Fat Bike Tires in Canada and know the best to spec for each type of rider and condition. Our on-site trail system allows us to test each tire on multiple rims and pressures right out our door in a variety of snow conditions (We're located in the Snow Belt!). We offer tires from Terrene, 45NRTH, Maxxis, and Surly.
Brakes
Not every rider prefers the brake spec of every stock build so if you want better stopping power out of the box on your build we offer a good selection of brake upgrades from SRAM, Shimano and Hope to swap into your bike build.
Wheelsets
Custom fat bike wheels are our specialty and 100's of sets have run through our local wheel builders hands. On any build you can opt for a custom wheelset from our selection of rims from Foundation (our in house carbon), HED, Lithic, Stan's and hubs from Hope, DT Swiss, Onyx and Industry Nine.
Cockpit
Personalizing your build comes down to the cockpit and ensuring it fits you best. These are your touch points and also a great way to personalize your ride. We offer a large selection and colors in handlebars, stems, seatposts (dropper options), saddles, grips and right down to the pedals. Why settle for off the shelf when you can have your bike built the way you want it with parts from your authorized dealer for Raceface, Chromag, PNW, OneUp and many more!
Bags & Racking
We also offer a wide selection of racks and bike packing accessories from EVOC, Salsa, Relevate Designs, PRO and More with special order color and custom frame bag options!
Give us a call for details.
Frame Size | Small | Medium | Large | X-Large |
Recommended rider height | 4'9"-5'5" | 5'5"-5'9" | 5'9"-6'1" | 6'1"-6'7" |
Recommended rider inseam | 29"-32" | 31"-33" | 32"-35" | 34"-37" |
Effective top tube | 589mm | 610mm | 632mm | 657mm |
Nominal head tube angle | 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 | 90mm | 100mm | 120mm |
Nominal seat tube angle | 74° | 74° | 74° | 74° |
Seat tube length | 380mm | 420mm | 465mm | 510mm |
Bottom bracket drop | 80mm | 80mm | 80mm | 80mm |
Chainstay length | 440-460mm | 440-460mm | 440-460mm | 440-460mm |
Wheelbase | 1119-1139mm | 1140-1160mm | 1162-1182mm | 1189-1209mm |
Trail | 94mm | 94mm | 94mm | 94mm |
Fork offset | 51mm | 51mm | 51mm | 51mm |
Rigid fork axle to crown length | 485mm | 485mm | 485mm | 485mm |
Stack | 607mm | 607mm | 617mm | 635mm |
Reach | 415mm | 435mm | 455mm | 475mm |
Standover | 707mm | 736mm | 773mm | 810mm |