Wheels Manufacturing BB30A Frame to Hollowtech II Spindle Outboard Thread Together Bottom Bracket BLK CheckoutTitle=Garmin Varia UT 800 Backing Plate Material Steel Compound

Backing Plate Material Steel Compound Sintered Heat Sink No Pad Shape Number 36

but especially fast on coarse-grained

DUB bottom bracket adds durability

Misc Bearing Eyelet

Wheels Manufacturing BB30A Frame to Hollowtech II Spindle Outboard Thread Together Bottom Bracket BLK CheckoutTitle=Garmin Varia UT 800 Backing Plate Material Steel CompoundWheels Manufacturing BB30A Frame to Hollowtech II Spindle Outboard Thread Together Bottom Bracket Black. 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 BB30a BB Shell Width (mm) 73 Weight 119 Spindle Interface Type Shimano Hollowtech II Defined Color