GRX Di2 RD-RX815 2x11 Spd. Ultegra Di2 reduce CO² emissions and minimize

reduce CO² emissions and minimize water usage

Post = Iron

All models in this series are made of FSC certified wood

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GRX Di2 RD-RX815 2x11 Spd. Ultegra Di2 reduce CO² emissions and minimizeSHIMANO 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