Ideal for gravel, adventure, and endurance riding, the FC-RX610-1 adapts to diverse conditions. Pair a 38T or 40T chainring with a 10-45T or 10-51T cassette to prioritise either closer gear steps for cadence control or wide range for steep climbs and variable terrain. Available in 165, 170, 172.5, and 175 mm crank arm lengths, it accommodates a broad range of rider preferences.
Key Features
• Optimised gravel and mixed-terrain gearing
• 38T and 40T chainring options
• Compatible with 10-45T or 10-51T cassettes
• Available in 165, 170, 172.5, and 175 mm crank arm lengths
• 12-speed HG chain compatibility
• Lightweight design balancing efficiency and durability
Technical Specifications
• Model Number: FC-RX610-1
• Series: GRX 12-speed
• Colour: Series colour
• Average Weight: 791 g (38T), 812 g (40T)
• Rear Speeds: 12
• Chain: HG 12-speed
• Chain Line: 49.7 mm
• P.C.D.: 110 mm
• Spider/Gear Arms: 4
• Chainring Combination: 38T, 40T
• Q-Factor: 151 mm
