Shimano Ultegra RX800 Rear Derailleur - 11 Speed
Full Screen
Exit Full ScreenPreviousNext
Shimano Ultegra RX800 Rear Derailleur - 11 Speed
Out of Stock
Multi-Buy Savings!
Code: RDX800
Shimano Ultegra RX800 Rear Derailleur - 11 Speed
The Ultegra RX800 rear derailleur features an integrated chain stabilizer mechanism for a secure ride on tough terrain. With technolgy taken from Shimano's MTB department the RX clutch system helps for a  a quieter experience and shifting security. For rides on smooth surfaces, the derailleur features and On/Off switch for the chain tensioner. Ideal from gravel bikes or cyclocross adventures.
  • Compatibility: Shimano 11-Speed STI control levers
  • Shadow RD+ Technology adopted from MTB rear derailleurs
  • Low-profile design fits closer to the frame
  • Clutch has on/off switch 
  • Maximum Front Difference: 16T
  • Low Sprocket: Max: 34T; Min: 28T
  • Top Sprocket: Max: 12T; Min: 11T
  • Total Capacity: 39T
  • Weight: 248g
David Lee Very easy to setup, love the 11-34 cassette compatibility.
Mr Ramer Excellent, works with GRX shifters and save a few grams if you don't need a cassette larger than 32.
Steve Very cool item. Still have to ride it, but it's really beautiful, and on the stand, shifts an 11-34 cleanly. The cabling is well concealed, and it's top rated quality.