Shimano Dura-Ace R9100 Hollowtech II Bottom Bracket
$39.99
No bottom bracket is as reliable and maintenance-free as an external threaded one, and it doesn't get any better than the Shimano Dura-Ace SM-9100 bottom bracket. The seals now have 50% less friction than 7900 series. 65 grams.
No bottom bracket is as reliable and maintenance-free as an external threaded one, and it doesn't get any better than the Shimano Dura-Ace SM-9100 bottom bracket. The seals now have 50% less friction than 7900 series. 65 grams.
Features:
Bottom bracket with small ball bearings for lightweight
