Shimano BB-UN300 Square Type BSA Bottom Bracket Sharpener durable cotton and sustainable TENCEL®

durable cotton and sustainable TENCEL® Lyocell

while delivering the power transfer of a standard alpine sole

Double-tongue like ATB clips

the Menace 3

Additional body-mapped mesh zones for added breathability

Shimano BB-UN300 Square Type BSA Bottom Bracket Sharpener durable cotton and sustainable TENCEL®SHIMANO Square Type Bottom Bracket MTB Standard Structure FEATURES SHIMANO quality performance cartridge bearing square bottom bracket Better chainline stability with chain line stabilizer 3 structures available Standard, E type, chain case options Adapter material: Aluminum MODEL NO BB UN300 SERIES TOURNEY A070 Series Remarks * w Crank arm fixing screws spec. only ** w Crank arm fixing screws spec. is available Structure Standard Spindle Square type