CeramicSpeed BSA30 MTB Bottom Bracket - BSA Thread 30mm Spindle Coated Races BLK Model=XT M8000 Sprockets are chrome-plated for hardness

Sprockets are chrome-plated for hardness and corrosion resistance

Color White Adhesive No Material Synthetic Cork Defined Color White Thickness 2

It is directly descending from the B66 Champion first featured in the 1927 catalog

Clamp Style Standard Rails Color Silver Defined Color Silver Diameter 30

8mm Stem Length 60mm 1-1/8" Threadless Black

CeramicSpeed BSA30 MTB Bottom Bracket - BSA Thread 30mm Spindle Coated Races BLK Model=XT M8000 Sprockets are chrome-plated for hardnessCeramicSpeed BSA30 MTB Bottom Bracket BSA Thread 30mm Spindle Coated Races Black. The CeramicSpeed BSA (English) 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. 1. 37 BB Frame Interface English BB Shell Width (mm) 68 BB Shell Width (mm) 73 BB Shell Width (mm) 83 BB Shell Width (mm) 100 Weight 81 Spindle Interface