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for versatile use
the SHIMANO Dura-Ace 9100 Italian bottom bracket features bearings that are even smoother and more sealed than the previous generation
With a reach of 70 mm and a drop of 128 mm
sur toute la surface du casque : sur le dessus
Its Fast Rolling Compound rubber
Boîtier de Connexion 5 Ports SHIMANO Di2 EW-90A Pneu Rigide for versatile useThis junction box is the very heart of any drivetrain SHIMANO Di2 Dura Ace and Ultegra. It is indeed through it that gear shift commands pass, and where settings are stored. It will find its place under the stem. The true brain of the system, this spare part will allow you to enjoy your drivetrain without buying the entire system again: essential in the event of breakage or failure. In this version, this junction box features a battery charge
