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Free UK Shipping Over £50 & Easy Returns





Free UK standard shipping on orders over £50
The Shimano RD-M9100 XTR 12-Speed Rear Derailleur delivers exceptional shifting precision and durability for mountain bikers who demand the best. Designed with a super low profile and optimized slant angle, this rear mech ensures ultra-smooth and lightweight shifting action, making gear changes effortless on challenging terrains. Its Shadow Plus technology stabilizes the chain by reducing bounce, providing a more stable and reliable drive even on rough trails.
Engineered with a combination of carbon fiber and alloy materials, the derailleur balances weight savings with robust rigidity. Features like the rubber bumper on the pulley cage and a single tension spring contribute to a quiet ride by preventing chain contact and noise. The direct cable routing system minimizes snagging risks, enhancing durability and performance during intense rides.
Built specifically for the XTR M9100 12-speed 1x drivetrains, this component supports a maximum low sprocket of 51T and a 41T capacity SGS cage, accommodating a wide gear range. Durable sealed bearing pulleys and fluorine-coated link pin bushings reduce friction for smooth operation, while the strong return spring ensures a responsive shifting feel. With an average weight of just 240g, it’s a lightweight but tough addition to any MTB setup.
Is the Shimano RD-M9100 compatible with 11-speed systems?
No, the RD-M9100 is specifically designed for 12-speed XTR M9100 1x drivetrains and is not compatible with 11-speed systems.
How does the Shadow Plus technology improve performance?
Shadow Plus reduces chain bounce and stabilizes the drivetrain on rough terrain, resulting in quieter, smoother shifts and better chain retention.
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.

