SHIMANO Rear Derailleur RD-RX817, GRX,11-SPEED, 1x11, Di2 closeout Adjustable entry and release tension

Adjustable entry and release tension settings

and works with our StreamLine towers to get the heavy duty job done right

Reign - 2005-2007

63mm travel

Or maybe you just like the way it looks

SHIMANO Rear Derailleur RD-RX817, GRX,11-SPEED, 1x11, Di2 closeout Adjustable entry and release tensionWith 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