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Shimano Ultegra RD-RX800 GS derailleur, 2x11

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The RX800 rear derailleur is compatible with road dual control levers (mechanical) and will accommodate cassettes with low gears from 28T to 34T, making them a very necessary addition for all types of adventure and off-road riding including cyclocross and compact styles with 46T-36T up to 50T-34T chainrings.

For adventure, gravel and cyclocross use: Shimano Ultegra 2x11-speed Rear Derailleur RD-RX800 GS 

Riders have been pushing the limits of what a road bike is capable of riding for many years, evolving the sport from racing to encompass greater adventure. In recent years we’ve seen a broader definition of what a drop handlebar bike can look like; road wheels followed that by accommodating wider tyres. Now in a natural evolutionary step it’s time for drivetrains to evolve too. 

The new RX800/805 rear derailleurs shares many characteristics with the Ultegra R8000/R8050 derailleur, such as precise accurate shifting and SHIMANO SHADOW RD derailleur positioning, but with the added chain stabilizing switch (known as SHIMANO SHADOW RD+ technology) to control the drivetrain over rough/uneven ground or off-road surfaces. Much like Shimano’s MTB derailleurs the On/Off switch can be found next to the upper pulley. When activated the rear derailleur pivot takes a firm hold to reduce excessive movement, noise and general ‘chain chatter’.

Features - Ultegra RX RD-RX800 GS 2x11-speed Rear Derailleur

  • SHIMANO SHADOW RD+ construction
  • Easily adjustable chain stabilizer to prevent the chain from hitting the chain or jumping off
  • Low profile rear derailleur design
  • Adapted for race specific frame design
  • GS Version - for Cassettes up to 34 teeth

Product features

  • Use: Road, Adventure, Gravel, Cyclocross
  • Group: Ultegra RX
  • Model: RD-RX800-GS
  • Cage: medium
  • Mount Type: Direct Mount
  • Gear front: 2-speed
  • Gear rear: 11-speed
  • Compatible Chain: HG-EV 11-speed / HG-X 11-speed
  • Max. teeth large sprocket: 34T
  • Min. teeth large sprocket: 28T
  • Max. teeth small sprocket: 12T
  • Min. teeth small sprocket: 11T
  • Max. Front Difference: 16T
  • Total Capacity: 39T

Material

  • Aluminum
  • CFRP

Weight

  • 248g (manufacturer information)

Scope of delivery

  • 1 Ultegra 2x11-speed Rear Derailleur RD-RX800 GS

Technologies

Shimano Shadow RD+ 
Less distraction quiet drive train. Rear Derailleur Stabilizer reduces chain slap. Simple solution for chain drop. Lighter and more efficient than roller type chain device.

Ultegra R8000

Product details

Groupset Shimano Ultegra
Gears 2x11
product ID 68907

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Japanese manufacturer produces road, mountain, gravel, trekking, BMX and e-bike groupsets. They also offer a whole series of components and apparel. Their range goes from wheels, footwear, eyewear to backpacks. Shimano is a traditional manufacturer known for their quality work, which is why they are the favourite choice of amateurs and professionals.

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