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Shimano GRX RX717 Di2 12-speed rear derailleur offers precise wireless shifting, a crash recovery function, and Shadow ES technology for stable performance.
Shimano GRX RX717 Di2 12-speed rear derailleur offers precise wireless shifting, a crash recovery function, and Shadow ES technology for stable performance.
Shimano Grx

Shimano GRX RX717 GRX Di2 12-sp. Shadow ES SGS 51-tooth LC Rear Der.

£379.99
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

Hassle free returns

RETURNS POLICY

If you'd like to exchange or return your order please include your name and order number with the return, our returns address is:

Returns
Activ Cycles
Unit 1&2 Kingfisher Business Park
Henwood
Ashford
TN24 8DG

Subject to the terms set out below we are happy to offer a refund or exchange on all goods except goods which are special orders or nutrition products, or where we have expressly advised you that there is no right to return the goods ordered (save in the event the goods are faulty) provided the goods are returned to us within 14 days of delivery to you.

If you return goods to us and request a different size or alternative product we will send it out free of charge (subject to stock availability). If you require a refund (or the replacement item is not in stock) we aim to process refunds within 2 working days of receipt of the goods. It is your responsibility to ensure that the item is returned to us safely and securely and in saleable condition.

Refunds will be processed using the same method of payment used for the original purchase. Due to the high incidence of fraud, we regret that we are unable to offer any refund without a valid receipt/delivery note.

If the product is faulty or wrong due to a mistake on our part then we will send out replacements free of charge and supply you with a prepaid returns label. For all goods returned please include a letter giving details along with a copy of the original receipt. Returned goods must be unused and with all appropriate packaging and labelling intact.

Your rights to return goods are protected under the Consumer Protection (Distance Selling) Regulations 2000 which can be found at theConsumer Protection (Distance Selling) Regulations 2000 (legislation.gov.uk).

Shimano GRX RX717 GRX Di2 12-sp. Shadow ES SGS 51-tooth LC Rear Der.

Brand:Shimano Grx

Code:RDRX717SGSA

Shimano GRX sets itself apart with gravel-specific ergonomics, optimised gearing options, rugged reliability, and a quiet, stable drivetrain.

The Shimano GRX RX717 Di2 12-speed rear derailleur provides precise and clean wireless shifting. It features an integrated on-board removable battery (BT-DN320 sold separately) protected within the linkage and a crash recovery function that absorbs impacts and returns the derailleur to its original position. The Shadow ES system uses a dual-spring chain stabilising switch to reduce chain bounce in rough terrain, maintaining stable drive and shifting. This system is zero maintenance with no degradation of performance. The unique structure uses two springs for a tighter chain wrap, improving shifting and security with a 70% increase in spring force, allowing the chain to mesh firmly with the sprocket and preventing skipping as cogs wear.

Features:

  • 13T solid pulleys and decreased derailleur tension prevent high chain tension in low gears
  • Steel outer and inner pulley cages
  • Cold forged wide alloy outer link
  • Fluorine-coated link pin bushings
  • Specifically designed for 12-speed drivetrains
  • 10-51 tooth compatible SGS cage
  • Connectivity: BLE, ANT Private
Sizing Information
Professional Opinion
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