Wheels Manufacturing BB30A Frame to Hollowtech II Spindle Outboard Thread Together Bottom Bracket, BlackMachined aluminum shell threads together for precise bearing alignment and frame fit, reducing bottom bracket creaking and premature bearing wear. Product Details: Made in the USA Replaceable Enduro bearings Specifications: BB Shell Width (mm): 73 BB Frame Interface: BB30a Bottom Bracket Shell I. D.: 42 Defined Color: Black Spindle Interface Type: Shimano Hollowtech II Weight: 119 UPC: 811079024732 MPN: BB30A OUT SHIM
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Wheels Manufacturing BB30A Frame to Hollowtech II Spindle Outboard Thread Together Bottom Bracket, Black