made thicker in the most delicate support points to maximize comfort even on bumpy terrain

Advanced Carbon Construction

Even on the hottest rides

The ultra-reliable freehub system transfers the highest pedaling loads resulting in direct power transmission

delivering the optimum durability for gravel riding

ENVE AR40 Freehub Body:SRAM XDR made thicker in the mostThe AR40 is the latest addition to the Foundation lineup. Featuring an aerodynamically optimized 40mm rim depth front and rear with a 25mm internal rim width, the AR40 is designed to deliver ultimate versatility for the road ride and racer looking for performance on and off road.