Wheels Manufacturing BB30 to Shimano Bottom Bracket Angular Contact Bearings BLK Cups Dark Grey 9mm max dimension is controlled

9mm max dimension is controlled by the Shimano spec

} Designed to stabilize nipples with rim beds for added strength and durability

and security

}Wheels Manufacturing T47A Bottom Bracket - for 29mm Spindle

Easy to keep in your pocket and bring out when needed

Wheels Manufacturing BB30 to Shimano Bottom Bracket Angular Contact Bearings BLK Cups Dark Grey 9mm max dimension is controlledWheels 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