Shimano Ultegra RX RD-RX800 is a road rear derailleur - the first model of its kind with a chain tensioning clutch. Due to its presence, the product works well on cross-country, Gravel and road bikes, for example, on cobbles and gravel.
A simple ON/OFF switch allows the chain to be tensioned, which pays off with its even handling and protection of the lower tube of the rear triangle. The Shadow RD design places the derailleur closer to the frame, is less vulnerable to damage and becomes more aerodynamic.
Highlights:
Intended use: road, cross-country or Gravel bike with 2x11-speed drivetrain
Compatibility: Dual Control handlebar
Chain tensioning clutch
Total derailleur capacity: 39T
For cassette with largest sprocket: 28-34T
Teeth: 11T
Carriage length: medium (GS)
Compatible chain: HG-X11
Construction: Shadow RD+ (more stealthy design)
Mounting: direct (for frames with a hook)
Weight: 248 g
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