SHIMANO GRX FC-RX600 40T crankset 11 speed

The SHIMANO GRX FC-RX600-1 is a gravel-specific crankset designed for 1x11-speed drivetrains. Combining a simple single-chainring setup with SHIMANO's proven HOLLOWTECH II construction, it provides efficient power transfer, reliable performance and gearing optimised for gravel, adventure and mixed-surface riding.

This version features a 40T chainring. The single-chainring configuration eliminates the need for a front derailleur, helping simplify the drivetrain while providing reliable performance on gravel roads, forest tracks and mixed terrain.

The GRX-specific chainline provides additional clearance for wider tyres and frames, while the 151 mm Q-Factorcontributes to an efficient and natural pedalling position. The crankset uses a four-arm design with a 110 mm BCD and is compatible with SHIMANO HG-EV and HG-X 11-speed chains.

The aluminium crank arms and chainring provide a good balance of stiffness, durability and weight. With a weight of approximately 753 g, the FC-RX600-1 offers a robust yet efficient solution for gravel bikes.

Key Features

• GRX gravel-specific design – developed for gravel, adventure and mixed-surface riding
• 1x11-speed drivetrain – simple and reliable single-chainring configuration
• 40T chainring – versatile gearing for gravel and mixed terrain
• HOLLOWTECH II construction – excellent stiffness and efficient power transfer
• Integrated 24 mm axle – proven SHIMANO crank interface
• 151 mm Q-Factor – optimised riding position
• 110 mm BCD – four-arm chainring mounting system
• HG-EV / HG-X 11-speed compatible – designed for SHIMANO 11-speed chains
• Aluminium construction – lightweight, stiff and durable
• Approx. 753 g weight – manufacturer-specified weight for the FC-RX600 1x11 crankset