This is a Cinch Bottom Bracket for 30mm spindles, and threaded bottom brackets. Features: Compatible with standard threaded BSA shells Standard 6806 retainer bearings Bearings are external to the bottom bracket shell resulting in a stiffer wider stance Includes inner plastic sleeve and spacer; additional fitments can be accommodated with Cinch spacer kits Inner sleeve helps to protect against water Rubber seal located on the bearing's external side helps to reduce the risk of water penetration Specifications: Frame Interface: BSA/English Threaded Spindle Interface: 30mm (RaceFace/Easton Cinch, 386 EVO, Rotor 3D+, e*Thirteen P3 Connect, Zipp Vuma) Bottom Bracket Shell ID: 1.37 Shell Width: 68mm, 73mm Color: Black Weight: 87g