Wheels Manufacturing BB30A Frame to Hollowtech II Spindle Outboard Thread Together Bottom Bracket, Black Accessories_Transition Bags *Bottom Bracket

*Bottom Bracket

first and foremost

providing a platform to challenge and explore the great outdoors

Material: 6061-T6

MSW Chainrings

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