Shimano GRX RD-RX400

Joe Mamma Cycles Verified independent store

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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 difference: 16T Low sprocket: Max. 36T/Min. 30T Top sprocket: 11T Attributes Max Front Difference 16T Maximum Cog 36T Minimum Cog 11T Primary Color Black Cage GS RD Capacity 41T RD Spring Type Shadow Plus RD Weight 303g Speed 10 Mount Standard Show more