Ultegra RX 800 GS

With an integrated chain stabilizer mechanism, the ULTEGRA RX 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.

• Chain Stabilizer mechanism adopted from MTB design
• ON/OFF switch
• Compatible with current road DUAL CONTROL LEVER
• Max. front difference: 16T
• Total capacity: 39T
• Low sprocket: Max. 34T/Min. 28T
• Top sprocket: Max. 12T/Min. 11T