GRX's redesigned ST-RX610 Levers w/ BR-RX400 Hydro Calipers feature textured hoods and an anti-slip brake lever coating that bolsters control on rugged terrain. Shimano have updated its 600-series cranks and shift levers for 1x12 and 2x12 setups that utilize trickle-down technology from the original 800 series GRX component line. Adding 12-speed shifting without any additional lever bulk, the RX610 series shifters are designed for all-day comfort when using flared drop bars, a gravel cycling
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