SHIMANO BB-ES51 Octalink V2 Spline Black Bottom Brackets

SHIMANO BB-ES51 Octalink V2 Spline Black 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
Color: Black  
Weight: 262g

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