SHIMANO Rear Derailleur RD-RX817, GRX,11-SPEED, 1x11, Di2 closeout Combine retro styling with amazing

Combine retro styling with amazing comfort and you get Serfas' Cruiser Classic saddle

Adjustable entry and release tension settings

you’ll get clear data that’s easy to see from any position

2 year limited manufacturing warranty

SHIMANO Rear Derailleur RD-RX817, GRX,11-SPEED, 1x11, Di2 closeout Combine retro styling with amazingWith 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 RX817 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. and is compatible with mtb cassettes with a 42T low sprocket max. Top sprocket: Max. 11T