Bottom Bracket Shimano ES51 73mm Octalink

Bottom Bracket Shimano ES51 73mm Octalink

The Shimano ES51 is a dependable Octalink bottom bracket designed for Shimano Octalink cranksets. It fits frames with a standard BSA 73 mm shell and is suitable for everyday riding as well as sport-oriented use.

A CrMo steel axle provides strength and durability, ensuring stable and smooth rotation even under regular load.

The composite bearing caps help reduce weight while protecting the bearings from dirt and moisture. The Shimano ES51 is a practical and long-lasting solution for Octalink-equipped bikes.

• Type: bottom bracket
• System: Octalink
• Shell width: 73 mm
• Axle: CrMo steel
• Bearing caps: composite