GRX Di2 ST-RX815 Shifter/Brake Set Position:Rear and shift mode switching

and shift mode switching

NEO 2 or NEO 2T smart trainers for your most realistic ride yet

Steel back plate

NXT is the world's most popular multifilament string

Carbon and alloy carrier blends low weight and strength

GRX Di2 ST-RX815 Shifter/Brake Set Position:Rear and shift mode switchingThe SHIMANO GRX DI2 DUAL CONTROL LEVER delivers light and responsive shifting for mixed terrain riding. The ergonomic shifter design improves comfort and the textured, anti slip brake lever increases control on bumpy terrain. The Di2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. GRX Di2 ST RX815 11 speed shifters brake levers and flat mount BR RX810 hydraulic calipers Anti slip brake lever increases