Shimano GRX 817 Di2 11-Speed Rear Derailleur

From £229.00

Compare prices from trusted UK retailers below

Sigma Sports
£229.00

In Stock, ready to order
Price last checked: 16/08/2026

Browse all Derailleurs or explore Shimano offers
Find the best Shimano Derailleurs deals

Shimano GRX 817 Di2 11-Speed Rear Derailleur

Shimano GRX 817 Di2 11-Speed Rear Derailleur The Shimano GRX 817 Di2 11-Speed Rear Derailleur uses a gravel-tuned clutch and adjustable chain stabiliser to deliver a smoother, more reliable experience to your gravel and adventure riding. You can switch the stabiliser on or off depending on the terrain, and the spring force, combined with the friction, keeps the chain tension high so that chain slap and noise are reduced - perfect for broken roads. With the Shimano E-TUBE platform that supports the electronic gears you can wirelessly customise the settings and shifting synchronisation from a smartphone, even from the roadside, and the resilient all-weather design of the system will keep you riding in all weathers. It is compatible with current road Dual Control Levers, making it a great upgrade if your local roads are in poor condition.

Black

42T £229.00

Additional Resources:

Latest Cycling Deals & Promos from Sigma Sports

Browse our latest cycling promos and vouchers now and start saving on everything from cycling jerseys and shoes to road bikes and electric bikes!

Sigma Sports: Visit Sigma Sports for some great deals
- Expires: 31 Dec 2026

About: Shimano

Shimano is a leading brand in the cycling industry, renowned for its high-quality components and innovative technology. The company offers a range of cycling products, including drivetrains, brakes, wheels, pedals, and shoes. Shimano's drivetrain components, such as its derailleurs and shifters, are widely regarded as some of the best on the market, providing smooth and reliable shifting for cyclists of all levels. The company's disc brakes are also highly regarded, providing excellent stopping power and modulation. With a commitment to innovation and a focus on the needs of cyclists, Shimano continues to be a go-to choice for cyclists looking for top-of-the-line components for their bikes.

About: Sigma Sports

Sigma Sports is a leading cycling and triathlon retailer based in the United Kingdom. Sigma Sports provides a comprehensive range of products catering to cyclists, triathletes, and outdoor enthusiasts. The store offers a diverse selection of bicycles, cycling accessories, apparel, and gear from well-known brands. Sigma Sports is known for its commitment to quality, customer service, and expertise in the cycling industry. The retailer has both a physical store and a robust online presence, making it convenient for customers to explore and purchase products. Sigma Sports is often associated with a wide range of cycling disciplines, including road cycling, mountain biking, and triathlon.

Similar Deals You May Like

Browse all

SHARE:

Shimano GRX 817 Di2 11-Speed Rear Derailleur

Shimano GRX 817 Di2 11-Speed Rear Derailleur

Other Colours & Sizes

Black

Additional Resources:

Latest Cycling Deals & Promos from Sigma Sports

About: Shimano

About: Sigma Sports

Similar Deals You May Like

Shimano 105 R7000 11-Speed Rear Derailleur

Shimano 105 R7000 11-Speed Rear Derailleur GS

Shimano 105 RD-R7000 11 Speed Rear Derailleur

Shimano 105 RD-R7100 12-Speed Rear Derailleur

Shimano 105 RD-R7150 Di2 12 Speed Rear Derailleur

Shimano 105 RD-R7150 Di2 12-speed Rear Derailleur

Shimano Acera 8 Speed Rear Derailleur

Shimano Acera M360 7/8 Speed Rear Derailleur

Shimano Acera RD-M3020 Rear Derailleur SGS Long 8-Speed - Black

Shimano Alivio 9-Speed SGS Rear Derailleur