Shimano Grx Rd-Rx400 Rear Derailleur 10-Speed Reservoirs Length: 38 cm (15")

Length: 38 cm (15")

Smart support

- Optimized chain for HG sprocket which provides a fast and precise rear shifting performance (especially during downshifts)

3D Spacermesh bodywrap for lightweight padding

Shimano Grx Rd-Rx400 Rear Derailleur 10-Speed Reservoirs Length: 38 cm (15")SHIMANO GRX Rear Derailleur SHIMANO SHADOW RD+ 10 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. FEATURES: Silent and uninterrupted rear shifting on rough terrain >>Adjustable chain stabilizer prevents chain slapping and drops SHIMANO SHADOW