Shimano GRX RD-RX400 Rear Derailleur 10 Speed 36T Max Medium Cage Shadow+ Nutrition Integrated NFC Medical ID and

Integrated NFC Medical ID and RECCO®

GX Transmission Flattop chain

allowing cyclists to easily explore new routes with confidence

clamping force and extremely low weight allows for an unparalleled component

An optimized hood shape fits all hand sizes for comfortable

Shimano GRX RD-RX400 Rear Derailleur 10 Speed 36T Max Medium Cage Shadow+ Nutrition Integrated NFC Medical ID andWith 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 RD+ Smooth and reliable mixed surface shifting Switch