Shimano BMR1 and BRM2 Di2 External Battery Mount Base Unit A CheckoutTitle=Schwalbe Aerothan Tube - 700 x 28 - 35 Bead Wire Primary Color Black

Bead Wire Primary Color Black Tire Diameter/ISO 26/559 e-Bike approved No Labeled Size 26x2

Splined driver body compatibility

Grip compound maintains traction when wet

11- and 12-speed master links and chains (not compatible with Campagnolo 12-speed chains)

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Shimano BMR1 and BRM2 Di2 External Battery Mount Base Unit A CheckoutTitle=Schwalbe Aerothan Tube - 700 x 28 - 35 Bead Wire Primary Color BlackShimano Di2 External Battery MountsAll Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com