Wheels Manufacturing BB30A Outboard Thread Together Bottom Bracket

Machined aluminum shell threads together for precise bearing alignment and frame fit, reducing bottom bracket creaking and premature bearing wear.Replaceable Enduro bearingsMade in the USA Specifications Spindle Interface Type: SRAM/Truvativ GXP BB Shell Width (mm): 68 , 73 Bottom Bracket Shell I.D.: 42 BB/Frame Interface: BB30a Defined Color: Black Weight: 129