The Dura-Ace 9100 Hollowtech II bottom bracket features new and improved sealing which ensures 50% less drag.
Size: 68mm
Model: BB-R9100
Shimano : IBBR9100B
Weight: 76g
The Dura-Ace 9100 Hollowtech II bottom bracket features new and improved sealing which ensures 50% less drag.
Size: 68mm
Model: BB-R9100
Shimano : IBBR9100B
Weight: 76g