SHIMANO’s new FC-RX600-10 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater to the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. The 2×10-speed crank is available in a 46-30T chainring combination and 170 172.5 and 175mm crank arm lengths. Wider gear range for long tours or unknown terrain Optimum gearing for mixed terrains and riding styles Gear combination 46-30T