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Free UK Shipping Over £50 & Easy Returns



Free UK standard shipping on orders over £50
The Shimano RD-M7120 SLX 12-Speed Rear Derailleur Shadow SGS is engineered for mountain bikers who demand precision and reliability in every ride. Designed specifically for 12-speed double drivetrains, this rear mech combines advanced technology with robust materials to deliver smooth and consistent shifting performance. Its Shadow Plus design lowers the profile, reducing the risk of damage on rough trails while ensuring ultra-light shifting action. The integration of a chain stabilizing switch minimizes chain bounce, keeping your ride stable and quiet even over the toughest terrain.
Built with durability in mind, the derailleur features a cold-forged alloy body and a carbon fiber outer pulley cage that balances strength and weight savings. The sealed 13T bearing pulleys and fluorine-coated link pin bushings reduce friction, contributing to a smooth and efficient drivetrain. Direct cable routing prevents snagging on trail obstacles, while the rubber bumper on the pulley cage enhances silent operation. Whether you’re climbing steep inclines or navigating technical descents, this rear derailleur offers the reliability and responsiveness you need.
Is this derailleur compatible with 1x drivetrains?
The Shimano RD-M7120 SLX is specifically designed for 12-speed double drivetrains and is not optimized for 1x setups.
What is the maximum sprocket size supported?
This derailleur supports a maximum low sprocket size of 45T and a maximum front difference of 10T, suitable for most double chainring configurations.
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.
