Shimano Ultegra RX Shadow Plus RD-RX800 11-speed Rear Derailleur -
Shimano Ultegra RX Shadow Plus RD-RX800 11-speed Rear Derailleur -
Shimano Ultegra RX Shadow Plus RD-RX800 11-speed Rear Derailleur -
Shimano Ultegra RX Shadow Plus RD-RX800 11-speed Rear Derailleur -

Shimano Ultegra RX Shadow Plus RD-RX800 11-speed Rear Derailleur



Regular price Rs. 9,210.00
Tax included. Shipping calculated at checkout.
Expected delivery between [[today,4]] and [[today,7]]

Cage Length

The Ultegra RX RD-RX800 rear derailleur by Shimano - friction damping on a Road rear derailleur

The Shimano Ultegra RX RD-RX800 rear derailleur is designed for Road bikes, but features the Shadow+ technology previously reserved for MTBs. A stabiliser mechanism that can be switched on and off provides friction damping, which considerably reduces the risk of chain hits and chain drops on uneven, non-asphalted surfaces. The RD-RX800 is therefore perfectly suited for Cyclocross, Gravel and adventure riders who demand a high degree of safety in addition to Shimano's typical shifting precision. The Ultegra RX rear derailleur is suitable for 11-speed cassettes from 11-28 to 11-34 teeth with its longer GS-type aluminium cages. You also have the option of direct mount.


Series: Ultegra RX
Application: Cyclocross, Gravel, Road
Gearing: 11-speed
Mount: standard (Direct Mount compatible)
Capacity: 39 teeth
Compatibility: Shimano Road 11-speed
Compatibility - Chains: HG-X11

Technical Information:

Derailleur Pulleys: 11 teeth
Outer Cage Material: aluminium
Inner Cage Material: aluminium
Other Materials: aluminium, composite (GFRP), stainless steel


- chain stabilizer mechanism (Shimano Shadow RD+) from the mountain bike sector
- on/off switch
- compatible with the latest Dual Control levers
- painted cage plates
- derailleur pulley bearings
- 4 joint bushings, fluorine-coated


Shadow RD+
Less distraction, quiet drivetrain. Rear derailleur stabilizer, reduces chain slap. Simple solution for chain drop. Lighter and more efficient than roller type chain device.


- Cage Length: GS
- Largest Sprocket Teeth (max.): 34 teeth
- Largest Sprocket Teeth (min.): 28 teeth
- Smallest Sprocket Teeth (max.): 11 teeth
- Smallest Sprocket Teeth (min.): 11 teeth
- Chainring Difference (max.): 16 teeth
- Total Capacity: 39 teeth
- Manufacturer Part Number: I-RDRX800GS


- 1 x Shimano Ultegra RX RD-RX800 rear derailleur
- 1 x Shimano OT-RS900 240 mm cable housing
- 1 x long nose end cap


  • dark grey/long: 248 g

IN SHORT: Raise return/exchange request within 7 days of receiving the item. In case of item looking used or wrong item sent, please raise the issue on the same day by email or maximum early next day. After 7 days we cannot help with the issue of "item looks used."

We process returns/refunds for defective/ wrong items received.

For size issues there are no returns/refunds, just exchanges. Exchanges are not promised (to avoid policy abuse) but we generally help, and issue store credit if your correct size is not available with us. Items returned must be sent to us in unused, unworn condition with original packaging, tags 100% intact.


No returns on Bike sales for size issues

PRE-ORDER Cancellation will incur 4% cancellation fee.

Cancellation without reason by the customer will also incur 4% cancellation fee.

Visit RETURNS CENTER to submit your request

Please read detailed policy below to be fully informed:

For any issues

  • Check if your item is eligible for return/exchange. All details are in this policy.
  • Email at within 7 days of receiving your item.
  • Please mention your order number in the email, and state the issue.
  • Add photographs of the issue, to best highlight the problem.

Returns and refunds are eligible if

  • The Item was received in a defective/ damaged condition
  • Wrong item delivered

A product may vary slightly in colour from the image shown on the website.

Size exchanges

  • We will exchange sizes for you if the item ordered and received differs from the size chart shown on the website for that item at the time of ordering.
  • Please consult the size chart carefully before buying a product. S, M, L, XL sizing differs brand to brand, match the cm and inches.
  • Take help from the Cyclop team in finding your size, use the chat box on the site.
  • If the item does not fit you for any other reason and you want to exchange it, we will help you at discretion. We generally issue store credit if the exchange size is not available.

Returns/ exchanges will be processed only

  • If the product is unused/unworn
  • In original packaging with tags, manuals, packaging intact (not torn or ripped)
  • If sent with proof of purchase – receipt/ invoice
  • Returned with promotional items sent with the product

Due to hygiene reasons, we will not accept returns/exchanges of jerseys, shoes that appear even slightly used. Intimate-use items like cycling shorts, socks will not be returned/exchanged.

Shipping charges for return/ exchange

  • For defective/damaged/wrong items we will ship back the item at no cost to you.
  • For size returns you are required to ship the item to us with charges borne by you.
  • Original shipping charges are non-refundable.

A customer may exchange a product once.

No returns/ refunds/ exchanges for clearance items.

All returns/exchanges must be agreed with the Cyclop team on email before any related shipping is done.



If you report an issue, 7 days after receiving the item, it will be treated as a warranty issue. You are required to contact the brand directly then, or connect with their official representatives in India for direct resolution of the problem.


In general, our team helps customers get the item they are happy with, we assist in genuine cases for return/exchange with the goal to make customer experiences great.

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