GRX RD-RX400 10 Speed rotor Fits most 4-piston Shimano brakes

Fits most 4-piston Shimano brakes

1 - Pipe cleaner

reliable and taste-free water

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Its strategic use of plastic support

GRX RD-RX400 10 Speed rotor Fits most 4-piston Shimano brakesDescription GRX RD RX400 Rear Derailleur Features A Shadow RD+ chain stabilizer prevents chain slapping and drops The gravel tuned clutch tension helps to provide smooth and reliable mixed surface shifting Stabilizer can be turned on off to match terrain GRX 10 speed rear derailleur for double cranks Adjustable chain stabilizer prevents chain slapping and drops Gravel tuned clutch tension can be toggled ON OFF to match the terrain Maximum front