Shimano BB-ES51 Octalink V2 Bottom Bracket (68mm x 121mm)

Up for sale is a reliable Shimano BB-ES51 bottom bracket. This uses the secure Octalink V2 splined interface. It offers a much stiffer and stronger connection than older square taper spindles. This specific size (68mm shell width and 121mm spindle length) is perfect for standard English-threaded bike frames. It is a common fit for vintage and classic mountain bikes or hybrid bikes using older Shimano Deore LX, Deore, or Alivio triple cranksets. Key Specifications: Brand: Shimano Model: BB-ES51 Spindle Interface: Octalink V2 (8-spline design) Shell Width: 68mm Spindle Length: 121mm Thread Type: English / BSA (1.37 x 24 tpi) Material: Sealed cartridge bearings with steel spindle