SHIMANO ES51 OCTALINK 73 X 121MM BOTTOM BRACKET show_disclaimer allowing you to ride faster

allowing you to ride faster

When using a steel blade

36/52 XS:165mm

8mm hardened steel shackle resists cutting

The white layers on the mat trap any particulate larger than 50 microns and must be peeled away once a week to help reduce possible sludge build-up and for the optimum performance of the entire system

SHIMANO ES51 OCTALINK 73 X 121MM BOTTOM BRACKET show_disclaimer allowing you to ride fasterShimano ES51 bottom bracket featuring an 8 splined Octalink interface for enhanced strength and power transfer. Designed for 73mm BSA threaded frames with standard cranksets. The hollow axle construction delivers improved rigidity compared to traditional square taper systems. Specification Model: BB ES51 BB Type: Octalink Threaded: BSA Threaded BB shell width: 73mm Axle Length 121mm Material Steel Resin Contents 1 x Shimano BB ES51 Octalink 73mm BSA