Shimano GRX 610 1x12-Speed Gravel Groupset The Shimano GRX 610 1x12-Speed Groupset delivers the perfect balance of simplicity, performance, and reliability for riders who live for gravel adventures. Built on Shimano’s dedicated gravel platform, GRX 610 brings the innovations of the top-tier RX820 series to a more accessible level with the same gravel-specific ergonomics, stable drivetrain, and hydraulic braking power that make GRX the benchmark for mixed-terrain riding. With its 1x12 drivetrain , the GRX 610 offers a wide gear range and crisp shifting with fewer components to maintain. The single front chainring setup keeps things simple and efficient, while the Shadow RD+ clutch rear derailleur ensures a quiet, secure chain over rough surfaces. Designed to thrive on dirt, gravel, and adventure routes, GRX 610 1x12 gives you the confidence to go further and explore beyond . Key Features & Specifications Crankset: Shimano GRX FC-RX610 - 1x12 configuration with 40T or 42T chainring options Cassette: Shimano Deore SLX CS-M7100 - 12-speed wide-range (10-45T or 10-51T) MICROSPLINE FITTING** Chain: Shimano CN-M7100 - 12-speed Hyperglide+ chain for smooth, reliable performance Rear Derailleur: Shimano GRX RD-RX820 - 12-speed Shadow RD+ with clutch for chain security Shift/Brake Levers: Shimano GRX ST-RX610 - 12-speed hydraulic STI levers (includes cables) Brakes: Shimano GRX BR-RX410 Flat Mount Hydraulic Disc Brakes - powerful, predictable stopping in all conditions Why Choose Shimano GRX 610 Simplified 1x12 drivetrain - clean, efficient, and low-maintenance setup Wide gear range - climb steep terrain and maintain speed on flats Gravel-specific ergonomics for maximum control and comfort Hydraulic disc braking for consistent stopping power on any surface Proven Shimano reliability with durable components built for real-world adventure Shimano GRX 610 1x12 Gravel Groupset gives you the freedom to explore with confidence. Designed for modern gravel bikes, bikepacking, and adventure cycling, it combines performance, simplicity, and long-lasting durability letting you focus on the ride, not the road ahead. ** It is possible to specify this groupset with an HG fitting cassette in either 11-51 0r 11-46 options. Please email for price and stock availability.