Shimano RX610 GRX Crankset 12S 172.5mm 30/46T - Black

Built around the heart and soul of gravel, the SHIMANO GRX FC-RX610-2 (2×12-speed) Crankset delivers simplicity, reliability, and a massive gear range for real-world adventures. A gravel-optimized 46/30T chainring pairing teams perfectly with 11–34 or 11–36 cassettes to keep your cadence smooth—whether you’re cruising tarmac, grinding endless fire roads, or tackling alpine passes. The two-piece Hollowtech II design with hollow-forged aluminum arms maximizes stiffness at low weight, while the asymmetric 110/80 mm BCD ensures efficient power transfer. With a 47 mm chainline and 151 mm Q-factor, it works seamlessly with modern gravel frames and tires, making this the versatile 2× choice for speed, range, and confidence.

- GRX RX610 2×12 gravel crankset pairs 46/30T rings with 11–34/11–36 cassettes for a huge, real-world gear range
- Hollowtech II, hollow-forged aluminum arms deliver excellent stiffness-to-weight for efficient power transfer
- 47 mm chainline and 151 mm Q-factor provide modern tire clearance and comfortable pedaling on long rides
- Asymmetric 110/80 BCD optimizes stiffness and shifting performance with compact, gravel-tuned rings
- Reliable 2× setup keeps cadence smooth on tarmac, gravel, and big mountain days

Specifications
Brand: Shimano
Model: RX610 GRX
Type: Crankset
Weight: 811g
Size: 11-36 teeth
Length: 175.5mm
Chainline: 47mm
Q-Factor: 151mm
Color: Black