tools and other repair items

Four rise options available from 30-100mm

Pivot with optional foot assist

OPTICAL GEAR DISPLAY

Double seals for water and dirt protection

Shimano GRX DI2 RD-RX815 Long Cage 11-Speed Rear Derailleur hydration tools and other repair itemsSHIMANO GRX DI2 Rear Derailleur SHIMANO SHADOW RD+ 34T max low sprocket 11 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. The RD RX815 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. and is