Shimano

Deore LX ES51 68x121mm V2 Spline Bottom Bracket

This Deore LX bottom bracket mates with any Shimano cranks using the Octalink V2 interface, and implements cartridge bearings to deliver hundreds of miles of smooth, worry-free performance in the toughest of conditions.

For installation and removal, use one of these tools from Park or Shimano.

• Fits 68mm English threaded frames
• Octalink V2 interface
• Compatible with FC-M752/751/M571/M510-8/M440-8 cranks
• 121mm spindle length

Confused about bottom bracket standards and what it is you need? Here's a comprehensive look at the subject: The Bottom Bracket (Un)Standard blog post.