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Product information "Shimano Ultegra Di2 ST-R-R8150 12-speed left"
Shimano Ultegra Di2 ST-R-R8150 12-speed left
The ST-R8150 electronic shift/brake lever from Shimano's Ultegra Di2 road bike group shifts wired 12-speed or 2-speed and brakes mechanically. It scores with fast gear changes, which are defined and intuitive thanks to the Shimano index shifting system. Cables lead from the STI first to a junction box and then to the battery, which in turn is connected to the rear derailleur and front derailleur.
The ergonomics of the dual control lever and the horns have been further optimized compared to previous models and allow a very comfortable grip. You can easily adjust the grip width with a slotted screwdriver.
The brake lever is made of lightweight aluminium, the grip body is made of plastic, which saves additional weight.
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