NEW Wheels Manufacturing BB30 to Shimano Bottom Bracket with ABEC-3 Bearings Black Cups Type_Helmets Assist Speed (Mph): 28

Assist Speed (Mph): 28

the B67 and B67 S feature single rails for attachment to modern micro-adjust seat pillars

The Optical Gear Display allows you to quickly and easily see what gear you are in

Seamless finish for a clean look and beautiful silhouette

Engineered with state-of-the-art features for athletes on the go

NEW Wheels Manufacturing BB30 to Shimano Bottom Bracket with ABEC-3 Bearings Black Cups Type_Helmets Assist Speed (Mph): 28Machined 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 Defined Color: Black Bottom Bracket Shell I. D.: 42 Spindle Interface Type: Shimano Hollowtech II Spindle Interface Type: FSA MegaExo Spindle Interface Type: FSA MegaExo Light Spindle Interface Type: RaceFace EXI Weight: 127 BB Shell Width (mm): 68 BB Shell Width