Shimano GRX FC-RX810 GRX chainset 40T, single, 11-speed, Hollowtech II, 172.5 mm

SHIMANO´s new FC-RX810-1 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. It is offered in 40T and 42T chainring options and 170, 172.5, and 175mm crank arm lengths.Features:- Tighter gear steps maintain rhythm on familiar routes- Optimum gearing for mixed terrains and riding styles- Gear combination: 42T, 40TTechnology:HOLLOWTECH II:- Providing the best balance of stiffness, strength, weight and rotating performance The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a rider's power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while produci