Shimano Dura-Ace SM-BB7900 Hollowtech 70mm BB / Italian
Shimano Dura Ace BB-7900 Hollowtech 2 Bottom Bracket
Top of the line bottom bracket! If you're the type that has to have the best of the best on every part of their bike, this is for you.
- Italian thread
- Shell width: 70mm
- Dura Ace silver
- External bearing
- Hollowtech 2 Compatible