Shimano Durace R9100 Bottom Bracket - 68mm - BSA trike Mountain HG Freehub compatible cassette

Mountain HG Freehub compatible cassette bodyThe NX crankset and X-Sync 2 chainring were engineered for complete chain control with each tooth shaped precisely to work with the chain’s inner and outer links

allowing you to ride and race further

e-tube is a two-prong system and is NOT cross compatible with Dura-Ace 7970 Di2 wiring

51T max cog size

Shimano Durace R9100 Bottom Bracket - 68mm - BSA trike Mountain HG Freehub compatible cassetteShimano Dura Ace BB92, BB9000 Hollowtech II Bottom Brackets Spindle Interface Type: Shimano Hollowtech II Bottom Bracket Shell I. D.: 1. 37 BB Shell Width (mm): 68 Defined Color: Black BB Frame Interface: English Weight: 65