Problem Solvers Bushnell Eccentric Lightweight Bottom Bracket - 68mm x 54mm Silver CheckoutTitle=TRP EVO Chain Compatible with all SRAM road

Compatible with all SRAM road Flattop chains

Dirt and water repellant while also being breathable

Siped knobs conform to terrain and provide extra grip for secure cornering

Ergonomic finger cutouts for better surface grip

Problem Solvers Bushnell Eccentric Lightweight Bottom Bracket - 68mm x 54mm Silver CheckoutTitle=TRP EVO Chain Compatible with all SRAM roadThe 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 lightweight version features additional machining and drilling of the alloy body to reduce weight. Accepts English threaded bottom bracket cups (1. 37 X 24 tpi) Lightweight cut out body design made from aluminum Fits BB shells from 53. 8 54mm I.