Ready for Every Trail

Mountain bikes have changed in the decade since the original Arch rim helped introduce the world to tubeless technology. With a 28mm wide asymmetric rim shape and ultra-strong 6069 alloy, todays Arch MK4 rim has evolved to match these more capable bikes. Through all the years of testing and refinement of this rim, one thing has never changed: versatility. Now more than ever, when you want a reliable rim that can handle every trail, the Arch MK4 is for you.

Technology:

BST-Asymmetric, WideRight

Specs:

Rim Internal Width: 28.0mm
Rim External Width: 31.4mm
Rim Depth: 18.9mm
Hole Count: 28-hole or 32-hole

Features:

Versatile 28mm internal rim width optimized for 2.2-2.5 tires.
Light and durable 6069 aluminum with welded joint and reinforced spoke bed.
BST Asymmetric design combines Stans legendary easy tubeless inflation with a stronger, more balanced wheel build.
3-year rim warranty with 1-year crash replacement