Wheels Manufacturing BB30 to Shimano Bottom Bracket Angular Contact Bearings BLK Cups MFPN=RB21EC90AX16D44 -Does not include axle bolt

-Does not include axle bolt or hardware

The fiber is as strong as polyester and as soft as silk

Dimensions: 30mm installed diameter  |  5

All complete brake pads include mounting hardware

Wheels Manufacturing BB30 to Shimano Bottom Bracket Angular Contact Bearings BLK Cups MFPN=RB21EC90AX16D44 -Does not include axle boltWheels Manufacturing BB30 to Shimano Bottom Bracket with Angular Contact Bearings Black Cups. Machined 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 TECH SPECS Bottom Bracket Shell I. D. 42 BB Frame Interface BB30 BB Shell Width (mm) 68 BB Shell Width (mm) 73 Weight 127 Spindle Interface Type Shimano Hollowtech II