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Cassette Body Type Micro-Spline
and passes all tests
totally cool
the risk of a puncture also decreases
Convenient clear funnel and pedestal
Shimano RX812 GRX 11 Spd Rear Derailleur Color:Gray - Black Cassette Body Type Micro-SplineShimano RX812 GRX 11 Speed Rear Derailleur Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding. SHIMANO SHADOW RD+ (11 speed) Adjustable chain stabilizer prevents chain slapping and drops Toggle clutch ON OFF to match the terrain Switch stabilizer ON OFF to match the