Shimano Ultegra BB72, BBR60 Hollowtech II Bottom Brackets
Fits all Shimano road 2-piece cranksets for frames with 68x1.37 English threading (Left-Hand thread on the Right side of the frame, Right-Hand threading on the Left side of the frame)
New seal construction for smoother rotation
Requires TL-FC34 or included TL-FC24 adaptor for installation & removal
Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity.
Bottom Bracket
Optimum power transfer
Wt: 77g
Optimum power transfer
Wt: 77g