Shimano UN300 Square Taper English Bottom Bracket Black/Blue Body mapping technology creates the

Body mapping technology creates the perfect performance fit to ensure you stay cool and perform your best when you ride

◎ Micro USB direct charging

Waterproofing: IP-68

or that which is suggested by the size chart

Silver-Anodized

Shimano UN300 Square Taper English Bottom Bracket Black/Blue Body mapping technology creates theShimano BB UN300 Square Spindle 68mm Bottom Brackets Features: Fits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle Specifications: Frame Interface: BSA English ThreadedSpindle Interface: Square Taper JISBottom Bracket Shell ID: 1. 37Shell Width: 68mmSpindle Lengths: 122. 5mmColor: SilverWeight: TBD