SHIMANO GRX DI2 Rear Derailleur 11-speed Max Low Sprocket:34T (RD-RX815) Compatible with up to 42

Compatible with up to 42 mm tires

Cable length 150 mm - 1600 mm

Compatible models: RD-M7100-SGS

Heavy-duty Nylon & Velcro triple-bands body for a powerful and longlasting secure of the shoe to the pedal

Available in Black and Reflective Silver

SHIMANO GRX DI2 Rear Derailleur 11-speed Max Low Sprocket:34T (RD-RX815) Compatible with up to 42RD RX815 SHIMANO 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