Shimano BB-RS501 Hollowtech II English Bottom Bracket MFPN=4308600 Caliper is fully compatible with

Caliper is fully compatible with flat-mount frames

Utilizing FSA’s core knowledge base of both headset and cockpit components the SMR system provides a “plug-in” solution for bike brands looking to internally route cables wires and hoses from the cockpit into the frame

5 patented alignment tip for increased durability and performanceadsets have 21mm headtube insertion

Synthetic top

3% Faster than standard tubeless

Shimano BB-RS501 Hollowtech II English Bottom Bracket MFPN=4308600 Caliper is fully compatible withThe Shimano BB RS501 bottom bracket features an enhanced seal construction to provide long lasting performance and service life. Designed for a perfect fit with Hollowtech II 24mm crank spindles Anodized aluminum cups are high strength and light weight Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 68 Weight 93 Spindle Interface Type Shimano Hollowtech II Defined Color Silver keyword search RS 500 Interface English