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Free UK Shipping Over £50 & Easy Returns





Free UK standard shipping on orders over £50
The Shimano Deore XT RD-M8260 Di2 STEPS wired rear derailleur redefines precision and durability for mountain biking enthusiasts. Engineered specifically for 12-speed HYPERGLIDE drivetrains, this rear mech ensures flawless gear shifts that integrate seamlessly with your Steps Ebike system via EW-SD300 wiring. Its advanced Shadow ES design features a low-profile skid plate and optimized slant angle, providing excellent ground clearance and protection against trail impacts.
Experience smooth and reliable shifting with the dual spring chain stabilizing switch, which significantly reduces chain bounce on rough terrain—maintaining stable drive performance. The system's unique dual-spring setup enhances chain wrap by 70%, securing the chain firmly to sprockets and preventing skipping even as components wear. Additionally, the derailleur boasts a crash recovery function that absorbs impacts and automatically returns to its original position, ensuring lasting performance without the need for maintenance.
Constructed with lightweight yet robust materials like cold forged wide alloy links and a fluorine-coated link pin bushing, the RD-M8260 balances strength and reduced weight perfectly. Its 13T solid pulleys and decreased derailleur tension reduce chain strain in lower gears, while the 10-51 tooth compatible SGS long cage accommodates a wide range of gearing setups. This component is a reliable choice for riders seeking high-performance shifting and durability in demanding mountain biking conditions.
Is this derailleur compatible with all Shimano Steps Ebike systems?
It is designed to work with Shimano Steps systems that support wired shifting via the EW-SD300 connection, ensuring optimal performance.
Can I use this derailleur on a non-Ebike mountain bike?
While technically possible, it is optimized for Ebike systems with electronic shifting and may not perform as intended on traditional mechanical setups.
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.


