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The two-row crankset is all about providing robust stiffness while reducing weight. It will enable you to achieve optimum cadence, significantly increasing your comfort when riding on more demanding terrain.
HOLLOWTECH II crank standard
HOLLOWTECH II is a technology that allows the integration of the lower support axle into the right crankset. This translates into increased stiffness and better balance, increasing the comfort of your ride.
Hollowtech II is a technology developed by Shimano to improve crank mechanisms. This technology makes the mechanisms lighter, stronger and more efficient. A characteristic feature is the integration of one of the crank arms into the axle.
Shimano GRX crankset FC-RX820-2 48-31T 12rz 170mm black
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