SHIMANO Dura-Ace BB-7710 Octalink V1 Track Silver Bottom Bracket BSA 109.5mm

SHIMANO Dura-Ace BB-7710 Octalink V1 Track Silver Bottom Bracket BSA 109.5mm 

OCTALINK Bottom Bracket
8-spline interface between bottom bracket and crank arm
Better meshing and power transmission

Frame Interface: BSA/English Threaded
Spindle Interface: Octalink V1
Bottom Bracket Shell ID: 1.37
Shell Width: 68mm
Spindle Length: 109.5mm
Color: Silver

Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.