Shimano GRX RD-RX812 11-Speed Rear Derailleur Long Black Compatio_Enriched Includes laser etched aluminum bar

Includes laser etched aluminum bar plugs and rubberized finishing tape

Reposition water bottle cages to optimize the position of your water bottle when using bags or to optimize fit on smaller frames

Teflon-coated nylon and includes a handy quick-release mount that securely attaches the pack to your seat

Diameter of the quill portion is 22

Fits QR axles and solid axles up to 12mm

Shimano GRX RD-RX812 11-Speed Rear Derailleur Long Black Compatio_Enriched Includes laser etched aluminum barWith 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 RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max. Silent and uninterrupted rear shifting on rough terrain Adjustable chain stabilizer prevents chain slapping