Wheels Manufacturing BSA Bottom Bracket - SRAM MTB, ABEC-3 Bearings, Black Cups

Machined aluminum bearing cups thread in to a standard BSA frames. CNC-machined aluminum shell for precise bearing alignment and frame fit Replaceable Enduro bearings Includes replacement dust covers and seals Made in the USA ABEC-3 sealed bearings Grade 10 chromium steel balls, 52100 High Carbon Chromium Alloy Races Item Specifications Weight 98 BB/Frame Interface English Spindle Interface Type SRAM/Truvativ GXP BB Shell Width 68 BB Shell Width 73 Defined Color Black Bottom Bracket Shell I.D. 1.37"