Shimano BB-ES300-E Octalink V2 E-Type Bottom Bracket 68x118mm English BSA
Important: ShimanoOctalink V1 and Octalink V2 are not cross-compatible systems. This bottom bracket is intended for compatibleOctalink V2 cranksets only. Octalink V2 spline interface. Interface:Shimano Octalink V2.