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Free UK Shipping Over £50 & Easy Returns





Free UK standard shipping on orders over £50
The Shimano RD-M8000 XT 11-Speed Shadow Rear Mech is engineered to elevate your mountain biking experience with precision and reliability. Featuring a Direct Mount compatible design, it creates additional space around the rear frame dropout, making rear wheel removal effortless while allowing frame designers to optimize chain stay length, increase axle sizes, and enhance suspension pivot placement. This design not only improves functionality but also offers a cleaner, more streamlined appearance.
Built for durability and smooth performance, the Deore XT Shadow+ Dyna-Sys11 11-speed rear derailleur provides sharp and consistent shifting with its lightweight yet stiff open design. The Shadow+ technology incorporates a low-profile shape that minimizes the risk of damage from trail obstacles, while the externally adjustable chain stabilizer tension ensures your chain remains steady across rough terrain. With optimized slant angles for 40-46T sprockets and direct cable routing, this rear mech delivers efficient, snag-free operation.
Shimano has also integrated premium features such as fluorine-coated link pin bushings for ultra-smooth shifts, a wide outer link that boosts pivot joint rigidity, and sealed bearing pulleys that withstand the rigors of the trail. The strong return spring provides a positive shifting feel, and the SGS cage supports a 40T capacity (46T for 1x 11-speed setups), making this rear mech a versatile and robust choice for demanding riders.
Is the Shimano RD-M8000 compatible with all mountain bike frames?
This derailleur is designed for frames compatible with Shimano’s Direct Mount system, so be sure to check your frame specifications before purchase.
Can I adjust the chain stabilizer tension myself?
Yes, the Shadow+ chain stabilizer tension can be easily adjusted externally using a hex key to suit different trail conditions and preferences.
Stock Status Instock - Instore - Item Usually shipped or available for shop collection, within 48 hours (Mon-Fri)
Instock - Supplier Warehouse - Item is held in Suppliers Warehouse, Depending on the the supplier transfer time can vary from 24 Hours to 14 Days for item held in European warehouse.
(over festive periods some suppliers shut from 24th Dec-2nd Jan so orders can be delayed through this period.)
Brands held in European website include Trek, Bontrager, Electra, Wahoo, Rapha. For up-to-date transfer times please call customer services on +44 (0)1782 768622
Most out products are shipped by FedEx, providing unprecedented reliability and speed. Lightweight Spares below £25.00 value have a Royal Mail postage option, which is sent via Tracked 48 service. - £2.99
Shipping on all Domestic Orders over £50.00 (excluding bikes and home trainers) for delivery within the UK is completely FREE!
Bike and Home Trainers and oversize Goods £15.00 - FedEx
White Glove Bike Delivery - our white glove option has your bike personally delivered to you by a fully trained Mechanic and Bike fitter - £99.99
(Certain bikes will only have this option such as Cargo Bikes)
To Qualify for FREE Shipping:
In some cases, we may ship items out with another courier, depending on the status and availability of items ordered. (Customers will not be charged more and will be refunded any unused postage cost) If part of an order is cancelled and the total drops below the £50.00 free postage, a postage charge may be taken.
Delivery costs will be clearly stated on the checkout page, though you will need to register (to provide your delivery address) in order to see the delivery costs.
If you have any questions about delivery charges, times or none delivery please do not hesitate to get in touch by email:store@swinnertoncycles.co.uk or by telephone on +44 (0)1782 768622. Handling is normally 48 hours, but at busy periods this may be extended but we will endeavor to process your order within 5 working days. Please bear in mind in some cases orders can take longer to process, please contact us for more details.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

