SHIMANO BB-ES300 Octalink V2 Spline Bottom Brackets
Fits Shimano Octalink V2 Spline Cranksets
Crankarm fixing bolts not included
Frame Interface: BSA/English Threaded
Spindle Interface: Octalink V2
Bottom Bracket Shell ID: 1.37
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.