Shimano Ultegra BB72, BBR60 Hollowtech II Bottom Brackets
- Reduced size for light weight
- New seal construction for smoother rotation
- Requires TL-FC34 or included TL-FC24 adaptor for installation & removal
- Spindle Interface Type: Shimano Hollowtech II
- BB Shell Width (mm): 68
- Bottom Bracket Shell I.D.: 1.37
- Defined Color: Black
- BB/Frame Interface: English
- Weight: 77
