SHIMANO Square Type Bottom Bracket - 68MM / 122.5MM W/O BOLT (BB-UN300) Out of Stock Engineered Knit Technology upper provides

Engineered Knit Technology upper provides exceptional breathability and comfort

with the capacity fitting of a lengthier boat

And it features an integrated USB stick for convenient cable-free recharging

it features an integrated heat exchanger that delivers ultra-efficient boil times

SHIMANO Square Type Bottom Bracket - 68MM / 122.5MM W/O BOLT (BB-UN300) Out of Stock Engineered Knit Technology upper providesSHIMANO Square Type Bottom Bracket MTB Standard Structure Square Type Bottom Bracket 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