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The Shimano Front Mech - FD-U4000-M CUES double front derailleur is engineered to elevate your mid-grade mountain biking experience with precision and reliability. Featuring LINKGLIDE technology, this front derailleur offers exceptional durability—up to 300% longer-lasting than traditional Hyperglide drivetrains—while maintaining smooth, consistent shifting performance. Its innovative side swing, front-pull design enhances tyre clearance and reduces cable friction, making your rides smoother and more efficient.
Specifically designed for modern bikes, the Shimano side swing technology ensures the lightest shifting action available, thanks to optimized cable routing and a wide pivot link for increased torsional rigidity. This translates into quicker, more responsive gear changes and an extended service life. Compatible with 9 and 10-speed LINKGLIDE drivetrains, it’s perfect for double chainrings ranging from 40-26 to 36-22 teeth, fitting frames with a 64-69 degree chainstay to seat tube angle.
Installation is simplified with a multi-fit mid clamp mount, making it adaptable for various bike frames. To create your ideal CUES groupset, Shimano provides an intuitive configurator tool that helps you select components tailored to your bike type and desired speeds. For deeper insight into the CUES system, a detailed introduction video is also available.
Is the FD-U4000-M compatible with 9 and 10-speed drivetrains?
Yes, it is specifically designed for 9 and 10-speed LINKGLIDE drivetrains, ensuring smooth shifting and durability.
Can this derailleur be used on bikes with different frame angles?
It fits bikes with a chainstay to seat tube angle between 64 and 69 degrees; outside this range, compatibility is not guaranteed.
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.





