Ascent Revolution Bottom Brackets - BSA EVOCSALE * The Metal Tire Lever

* The Metal Tire Lever Is Designed For Durability And For Emergency Use Only

A unique detachable strap system offers quick

including Shimano® Ultegra® BBR60 and Deore XT® MT-800 bottom brackets

balancing aerodynamic performance

Ascent Revolution Bottom Brackets - BSA EVOCSALE * The Metal Tire LeverETA:: 1 2 Weeks The Revolution BSA BB provides the ultimate in threaded bottom bracket performance. A precision machined custom two piece full Aluminum 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