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no damping
the Hollowtech tip now glows in the dark
This binding is only compatible with NNN BC Boots
The extended EVA foam grip with a dual-density
The result is a gravel bike that climbs effortlessly
Shimano Dura-Ace R9100 Hollowtech II English Bottom Bracket bottom-bracket no dampingThe Shimano Dura Ace R9100 bottom bracket is the English threaded bearing unit for Hollowtech II cranksets at the top of Shimano's road lineup. Designed for frames with 68mm or 73mm BSA threaded shells, it provides smooth, low friction rotation built to Dura Ace standards. Preload adjustment is handled externally, making installation and fine tuning straightforward with a standard bottom bracket wrench. Compatible with Dura Ace and Ultegra Hollowtech
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