Wheels Manufacturing BB30A Frame to Hollowtech II Spindle Outboard Thread Together Bottom Bracket BLK ModelNumber=K7829 It’s the small

It’s the small

50 Tire Diameter/ISO 28/622 Tubeless Technology TLR e-Bike approved Yes

Detents on the preload collar to allow more precise preload tuning

} Direct drive trainer with an electro brake

Wheels Manufacturing BB30A Frame to Hollowtech II Spindle Outboard Thread Together Bottom Bracket BLK ModelNumber=K7829 It’s the smallWheels 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