For more budget conscious consumers and to allow a wider price range on complete gravel bikes, Shimano has updated its 600-series cranks and shift levers for 1x12 and 2x12 setups that utilize trickle-down technology from the 820 series GRX component line.
The new GRX RX610 2-piece 12-speed crankset offers the perfect balance of low weight and high efficiency for mixed terrain riding. The transmission provides a smooth rhythm with tighter graduations.
Gravel gear ratios preserve riding rhythm over rough surfaces with wider tires
Optimum gearing for mixed terrains and riding styles
10-45T and 10-51T cassette options serve array of riding styles (requires Microspline)