Problem Solvers Bushnell Eccentric Bottom Bracket - Classic Fat 100mm x 54mm Silver Model=Stainless Cogs 7075 aluminum with hard anodized

7075 aluminum with hard anodized finish for extra durability

350 based Spline hub

Replacement top caps for various RockShox suspension forks

Shimano Di2 External Battery MountsAll Di2 components on the bicycle require the same firmware version

Problem Solvers Bushnell Eccentric Bottom Bracket - Classic Fat 100mm x 54mm Silver Model=Stainless Cogs 7075 aluminum with hard anodizedProblem Solvers Bushnell Eccentric Bottom Bracket Classic Fat 100mm x 54mm Silver. The Problem Solvers Bushnell Eccentric Bottom Bracket is the industry leading design for chain tension adjustment on tandem and dedicated single speed bikes equipped with eccentric bottom bracket shells. The classic version features full body aluminum construction across the shell for maximum surface area friction and additional value. Accepts English threaded bottom