I9 x Alex Carbon CF1 26" Fat Bike Wheelset
Rim: Alex Carbon CF1 26" (559 x 65mm)
Front Hub Spacing: 15x150mm
Rear Hub Spacing: 12x177 or 197mm, QR 170 or 190mm
Rotor: Six Bolt
Freehub: HG, XD or MS
Tubeless Ready: Yes
Fit or driver questions?
- In stock, ready to ship
- Inventory on the way
SHIPPING: Fyxation believes in shipping fast! Most orders ship weekdays within 24 hours. We ship via USPS Priority Mail or UPS Ground in the U.S. and via DHL Internationally. Tracking is sent at the time of shipment. If Ship to Store is selected, we'll send tracking when the bike ships to a convenient local bike shop for pro assembly.
NO HASSLE RETURNS / EXCHANGE: You can return or exchange any product you've purchased in new condition within 30 days.
Fat Bike Hub Driver
Shimano HG
Fits Shimano 8–11 speed MTB cassettes. This is the most common freehub standard and works with most Shimano and SRAM mountain cassettes, except XD-only cassettes.
SRAM XD
Fits SRAM 11 and 12-speed XD cassettes. Required for cassettes with a 10-tooth small cog and offers a wider gear range. Not compatible with Shimano HG cassettes.
Shimano Micro Spline (MS)
Fits Shimano 12-speed MTB cassettes. Shimano’s 12-speed standard, designed to support a 10-tooth small cog while maintaining strength and durability.
Fat Bike Hub Spacing
Fat bike hubs use wider spacing to clear large tires and frames. Hub sizing describes the axle type and the frame or fork spacing.
Front Hub Spacing
135QR -Uses a 9mm quick release axle with 135mm fork spacing. Common on older fat bikes.
150QR - Uses a 9mm quick release axle with 150mm fork spacing.
15×150mm Thru Axle - Uses a 15mm thru axle with 150mm fork spacing. Stiffer and more secure than quick release.
Rear Hub Spacing
170QR - Uses a 10mm quick release axle with 170mm rear frame spacing. Found on some older fat bikes.
12×197mm Thru Axle - Uses a 12mm thru axle with 197mm rear frame spacing. This is the modern fat bike standard.
How to Read Hub Sizing
Quick Release (QR) hubs use a 9mm or 10mm axle that clamps into open dropouts.
Thru Axle hubs use a solid axle that passes through the frame or fork and threads in.
In a size like 12×197mm:
• 12mm = axle diameter
• 197mm = rear frame spacing
In a size like 150QR:
• QR = 9mm quick release axle
• 150mm = fork spacing
Built around Industry Nine hubs, these are the premier builds in the lineup—top-shelf engagement, tight machining, and a ride feel that’s instantly noticeable when you put power down. Paired with proven fat and plus rims, they spin up fast, hold lines in sketchy conditions, and stay solid under hard riding. This is the high-end option for riders who want their wheelset to feel as dialed as the rest of their bike.
Will this fit my bike?
Check out our fit guide below for some of the most popular fatbikes. Don't see yours? Reach out to us via the chat icon below.
What freehub driver types fit this hub? Shimano HG, SRAM XD, and Shimano Micro Spline options are available.
What does 12×197mm mean? A 12mm thru-axle and 197mm frame spacing, the modern fat-bike rear standard. Therefore, a front hub at 15x150mm is a 15mm thru-axle and 150mm fork spacing.
See more detail on our wheel fitment guide-->