Wheels Manufacturing - BB30 to Shimano Bottom Bracket with ABEC-3 Bearings Black Cups

Machined aluminum shell threads together for precise bearing alignment and frame fit, reducing bottom bracket creaking and premature bearing wear. Features Replaceable Enduro bearings Made in the USA ABEC-3 sealed bearings Grade 10 chromium steel balls, 52100 High Carbon Chromium Alloy Races Specifications Spindle Interface Type: Shimano Hollowtech II , FSA MegaExo , FSA MegaExo Light , RaceFace EXI BB Shell Width (mm): 68 , 73 Bottom Bracket Shell I.D.: 42 Defined Color: Black BB/Frame Interface: BB30 Weight: 127 Manufacturer Part Number: BB30-OUT-1