Shimano GRX FC-RX610-2

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The new FC-RX610-2 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. GRX 12 speed, double crankset. 30-46T: Shimano's widest range gravel-oriented double crank. Tighter gear steps than 1X drivetrains make it easier to maintain pedaling rhythm Bottom Bracket: Not included - BB-RS500/BB-RS500-PB. Chainline: 46.9mm Attributes BB Inclusion No BCD 80/110 Drivetrain Spacing Road Disc Crankset Material Aluminum Speed 12 Primary Color Black Chainline 46.9mm Crank Spindle Diameter 24mm Pedals Thread 9/16'' Teeth 30/46 Show more