Dura Ace 9100 BSA/Ital. bottom bracket cups

Lightweight Shimano Dura Ace 9100 bottom bracket cups (BSA/ital.) with small balls for high durability and reduced friction. A sophisticated sealing construction ensures long durability and in combinatin with Shimano road cranksets with integrated axle, it offers a smoother pedal stroke as well as improved stiffness.

Details:
Suitable for all Shimano road cranksets with integrated axle Ø 24 mm
Optimized sealing system with reduced friction
BSA thread (1,37 x 24 tpi)
Ital. thread (36x 24 tpi)
Shell width: 68 mm (BSA), 70 mm (ital.)
Hollowtech II: high stiffness, low weight and improved power transfer thanks to a firm connection between the bottom bracket axle and the right crank
Material: anodized aluminium, carbon fibre reinforced plastic
Weight: approx. 65 g

delivery content: Shimano Dura Ace 9100 cups, no additional equipment

optional equipment:
TL-FC24 assembling/disassembling tool (art.code. 1919121)

Manufacturer’s ref.:
BB-R9100B
BB-R9100i