Designed to face the worst British weather has to offer, Hope's threaded bottom brackets feature high quality sealed cartridge bearings and fit a variety of cranksets. Features stainless steel sealed bearings. Fits 30mm BSA30 cranks such as Hope Cranks. BB/Frame Interface: English. Spindle Interface Type: Hope BSA30. BB Shell Width: 68. BB Shell Width: 73. Defined Color: Black. Bottom Bracket Shell I.D.: 1.37".