SHIMANO BB-UN300-K-LL Square Taper English Bottom Bracket BSA 68mm w/ 0.7mm Spacer For Chain Case
Fits JIS square-taper cranksets
Crankarm fixing bolts sold separately
Hollow spindle
For chain case
Included 0.7mm spacer
Frame Interface: BSA/English Threaded
Spindle Interface: Square Taper JIS
Bottom Bracket Shell ID: 1.37
Shell Width: 68mm
Spindle Length: 122.5mm (LL123mm)
Color: Silver
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.