Shimano FC-RX600-10 GRX Double Crankset - 10 Speed

Wider gear range for long tours or unknown terrain Optimum gearing for mixed terrains and riding styles Gear combination: 46-30T Series: SHIMANO GRX 10-speed Two-piece crank construction Chianline: 46.9mm Chain Ring Combination: 46/30t Compatible Chain: HG-10-speed Bolt Circle Diameter: 110mm/80mm 4-bolt asymmetrical Rear Speeds: 10 speed Recommended Bottom Bracket: BB-RS500 (Outboard threaded); BB-RS500-PB (Pressfit) Bottom Bracket sold separately Threaded Bottom Bracket Shell Width: 68/70mm Q-Factor: 151mm