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For silent and uninterrupted rear shifting on rough terrain.
For silent and uninterrupted rear shifting on rough terrain.
Shimano

Shimano GRX Di2 RD-RX817 11-Speed Rear Derailleur Shadow+ for Single

£179.00 £309.99 42% off
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Shimano GRX Di2 RD-RX817 11-Speed Rear Derailleur Shadow+ for Single

Brand:Shimano

Code:RDRX817

With an integrated chain stabiliser mechanism, the Shimano GRX derailleur provides a quieter experience and shifting security, and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an On/Off switch for the chain tensioner. The RD-RX817 Di2 version offers the digital precision of Shimano electronic shifting and synchronised shifting, and is compatible with MTB cassettes with a 42T low sprocket max.

Features:

  • Adjustable chain stabiliser prevents chain slapping and drops
  • Switch stabiliser on/off to match the terrain
  • Gravel-tuned clutch tension

Benefits:

  • Smooth and reliable mixed surface shifting
  • Compatible with current road Dual Control Lever
  • Top sprocket: Max. 11T/Min. 11T
  • Low sprocket: Max. 42T/Min. 40T
  • Total Capacity: 31T
Sizing Information

General Unisex Brand Information

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