AM-275 Carbon Fiber Mountain Wheels


Our goal for the AM-275 was simple, to make the best AM/Enduro rim on the market. The result is a wide, lightweight, asymmetrical, durable, stiff and tubeless ready rim ready to take you up the steepest climbs and down the gnarliest descents with more speed and precision than you've experienced before. The AM-275's full carbon hookless construction provides the ultimate in stiffness and toughness at the lowest weight possible. It's designed to handle a wide range of riding including extreme all-mountain terrain, Enduro, Super-D and XC racing.

The AM-275 gets all of our latest technology, including UniWeave construction, the Anti-Burp Bump, the strongest RockGuard Hookless bead lip we've ever made and of course our asymmetric offset design which improves spoke tension equality by more than 15%.

All of us at Nox have been huge proponents of the 650B (27.5) wheel size. We've been "on board" since the beginning, converting older 26" bikes back when the tire choices were very limited. We are thankful that the 650B trend is taking off, and doing an all mountain 650B wheel was at the top of our priority list. We fully expect you to ride these hard and put them away dirty so we've built them up stronger than our XC rims to withstand drops and high speed chunk. At only 420g and a whopping 29mm wide (internal), they outperform rims weighing a quarter of a pound more! After all, you have to get UP the climbs before you can rip the descent.

We offer the AM-275 as a single rim or a complete wheelset. Our wheelsets are handbuilt right here in Tennessee using only the best components; Sapim CX-Ray bladed spokes and DT Swiss alloy Pro Lock hexagonal nipples. Hub choices include Chris King, Industry Nine or Hope. Wheel builds come with our TPP tape and tubeless valves installed. All wheelsets are built to order and it may take 1-2 weeks before wheelsets ship.

  Wheels are handbuilt in Tennessee  
In Stock. Custom wheelsets ship in 2-3 weeks depending on hub availability.
For pricing or to configure a wheelset, use the drop down menu below.
AM-275 Specifications  
*Rim weights are +/- 10g
**Wheel weights are with CX-Ray spokes with alloy nipples
***Recommended build tension is 120 kgf
Please read the FAQ for other questions.
Weight Rim 420g*
Weight I9 Wheelset 1539g**
Weight Hope Wheelset 1578g**
Weight King Wheelset 1618g**
ERD 551
Asymmetric Offset 2.5mm
Max Tension 200+ kgf***
Depth 25mm
Width 35mm external, 29mm internal
Hole Count 32, 28 (custom order 3-4 wks)
Tubeless Ready Yes
Finish Satin Unidirectional Carbon
Tech Features UniWeave™, RockGuard HL™, Anti-Burp Bump™
Rider Weight Limit None