Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity.
- Lighter weight than current XTR
- -19.3g (Thread type)
- Better sealing performance than current or Road DuraAce
- Smoother rotation than current Dura-Ace is more smoother though
- Durable enough for mountain bike usage
Buy Shimano XTR M9000 11 Speed Bottom Bracket from Texas Cyclesport, your Online Bike Store.