Shimano GRX Di2 ST-RX825 Shifters feature a wireless gravel-specific cockpit where raised hoods with ribbed surface texture and anti-slip brake levers provide ultimate hand security no matter how spicy the ride gets. That secure hand position is enhanced with the location of the third Di2 button on the inside of the hood. Whether used as another shift location or for scrolling through screens on a cycle computer, this third button is another way to fully experience Shimano's electronic Di2 sy
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