Shimano GRX Di2 Rear Derailleur (RD-RX815) shimano Always confirm your specific wheel

Always confirm your specific wheel and tyre combination is approved before installation

Consisting of highly refined laboratory-grade paraffin and a high concentration of 3 specific sizes of nano-scale Tungsten disulfide

This scaled-down version of the original Plan B mounts neatly under the saddle and around the rails using a 25mm strap secured by a clever magnetic hook

Side pocket at leg

) is a subjective factor contributing to determining which is the best q-factor for each one of us

Shimano GRX Di2 Rear Derailleur (RD-RX815) shimano Always confirm your specific wheelWith 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 compatible with road cassettes with a 34T low sprocket max. Features Silent and