RaceFace has tapped into their collective know-how to make this rim stronger, and better balanced than anything else on the mountain. AN asymmetrical design creates perfect spoke tension while 6069 alloy provides a jaw-dropping strength to weight ratio. By offsetting the nipple bed on these rims, we can optimize spoke tension and make the ARC wheels stiffer and stronger. ARC Offset rims feature a tubeless ready design, with a rim bead you can trust to hold your tire in place - no matter what.