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narrow-tooth chainring technology provides maximum chain control
and Extrema models (SKU: 30494) is a precisely crafted component designed to ensure accurate and reliable front derailleur positioning
Its compatibility with Di2 systems supports seamless electronic gear changes
more comfortable and with increased puncture protection
Shimano FC-RX810-1 - GRX HOLLOWTECH 2 Car Racks narrow-tooth chainring technology provides maximumFeatures tighter gear steps to maintain rhythm on familiar routes 1x drivetrain offers simplicity 50. 1mm chainline 151mm Q factor Number of Chainrings: Single Color: Black Chainline Hub Compatibility: 135 142 Road Disc Hubs > 415 mm Chainstay Pedal Spindle: 9 16" Crank Intended Use: Gravel Crank Length (mm): 170 Rings: 40 Spindle Interface Type: Shimano Hollowtech II Drivetrain Speeds: 11 Defined Color: Black Chainring BCD: 110 Shimano Asymmetric BB