ASCENT Revolution Bottom Bracket
The Revolution BSA BB provides the ultimate in threaded bottom bracket performance.
A precision-machined custom two-piece full Aluminium 6061-T6 shell fits snugly together while being threaded in, enforcing the alignment between the two halves for impeccable smoothness.
We use top-grade NTN 6805 LLB precision steel bearings for durability, reliability, and smoothness. Each bearing can be removed and replaced using standard bearing tools, allowing the bottom bracket to be used for a long lifetime.
Weight: About 100g
Frame compatibility: BSA 68mm
Crank compatibility: Shimano Hollowtech Road (24mm axle), GXP (with optional sleeve)