Shimano GRX RD-RX400 10-Speed Rear Derailleur Size_700x28c FlexTight™ H-34N bracket

FlexTight™ H-34N bracket

Simplicity and performance made for all day adventures

This is modern parts meet timeless design

54-406  20x2

Gravel-tuned clutch tension

Shimano GRX RD-RX400 10-Speed Rear Derailleur Size_700x28c FlexTight™ H-34N bracketSHIMANO GRX Rear Derailleur 10 speed RD RX400 SHIMANO GRX Rear Derailleur SHIMANO SHADOW RD+ 10 speed With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON OFF switch for the chain tensioner. FEATURES Silent and uninterrupted rear shifting on rough terrain Adjustable chain stabilizer