Wheels 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 | Black |