Shimano FC-RX610-1 GRX Crankset – 1X12

The Shimano FC-RX610 is a 1×12 GRX crankset built for mixed-terrain gravel riding, balancing weight savings with efficient power transfer. Riders can pair the single chainring with a wide-range or close-ratio cassette, choosing tighter gear steps or greater range depending on riding style. Cassettes and chainring are sold separately.

The crank’s spindle interface and asymmetric bolt circle support stiff, efficient single-ring power transfer on mixed-terrain routes. Hub spacing and chainline are matched to modern gravel frame geometry, and the crank works with 12-speed HG-compatible chains. A bottom bracket is sold separately and required for installation.

Quick Facts