CeramicSpeed EVO386 Bottom Bracket - 86mm 24mm Spindle Coated Races Black Model=XTR M985 10-Speed RS3 Cassettes are a great

RS3 Cassettes are a great replacement for 11-speed road sytems

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CeramicSpeed EVO386 Bottom Bracket - 86mm 24mm Spindle Coated Races Black Model=XTR M985 10-Speed RS3 Cassettes are a greatCeramicSpeed EVO386 Bottom Bracket 86mm 24mm Spindle Coated Races Black. The CeramicSpeed EVO386 bottom bracket offers bearings with extremely low friction improved power transfer and a service life that far exceeds traditional steel bearings. TECH SPECS Bottom Bracket Shell I. D. 46 BB Frame Interface 386 EVO BB Shell Width (mm) 86 Weight 92 Spindle Interface Type Shimano Hollowtech II