Shimano GRX

Shimano GRX is Shimano's dedicated gravel cycling groupset — the first groupset designed from the ground up specifically for gravel and mixed-terrain riding. Launched in 2019, GRX combines road-derived shifting precision with MTB-inspired durability and mud clearance, delivering a groupset that excels on the unpredictable surfaces, long distances, and varied terrain that define gravel cycling. At Swinnerton Cycles, we stock Shimano GRX components across both the 10-speed RX600 and 12-speed RX820 generations for gravel cyclists building or upgrading their drivetrain and braking system.

GRX's hydraulic disc brake levers are designed with a longer reach and more ergonomic shape for comfortable braking in the drops on long gravel rides, while the chainset range covers both 2x and 1x configurations for different gravel riding styles. The 12-speed RX820 series brings GRX into the modern era with wider gear range and improved shifting performance for the most demanding gravel terrain.

Why Choose Shimano GRX?

• Shimano's dedicated gravel groupset, designed from the ground up for mixed-terrain riding
• Launched in 2019 as the first purpose-built gravel groupset from a major manufacturer
• BL-RX825 hydraulic disc brake levers with ergonomic drop bar design for gravel comfort
• FC-RX600 10-speed chainset for reliable 2x gravel drivetrains on longer routes
• FC-RX820 12-speed chainset for the latest GRX generation with wider gear range
• Compatible with Shimano's wider road and MTB ecosystem for flexible builds

Top Selling Shimano GRX Products

• Shimano GRX BL-RX825 Left Hydraulic Brake Lever — a hydraulic drop bar brake lever for GRX gravel drivetrains, with ergonomic design for comfortable braking on long gravel rides
• Shimano GRX FC-RX600 10-Speed Chainset — a 10-speed HollowTech II gravel chainset in 2-piece design for reliable 2x GRX drivetrains on gravel and mixed-terrain bikes
• Shimano GRX FC-RX820 12-Speed Chainset — a 12-speed HollowTech II gravel chainset for the latest GRX generation, offering improved shifting and wider gear range for demanding gravel terrain