FC-RX610-2 GRX Crankset - 2X12

The Shimano GRX FC-RX610-2 is a double chainring crankset built for 12-speed gravel drivetrains, part of Shimano's dedicated GRX series. Its two-ring setup covers a wide gearing range for mixed terrain, from paved roads to loose gravel and light trail. The crankset pairs with modern 12-speed chains for consistent shifting across the cassette.

A four-arm spider connects the chainrings to the crank arms, keeping the assembly compact and rigid under pedaling load. Chain line and Q-factor are calibrated for gravel-specific frame clearances, supporting stable footing and consistent tire clearance on rough surfaces. The asymmetric bolt circle allows chainring combinations to be swapped without replacing the crank arms.

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