Shimano Cues FD-U4000-M Front Derailleur 9/10-SP - Mid Clamp - Double

Shimano CUES FD-U4000-M Front Derailleur 9/10-Speed – Mid Clamp – Double

Upgrade your 2x drivetrain with the Shimano CUES FD-U4000-M Front Derailleur, engineered for consistent, high-precision front shifting across modern 9 and 10-speed systems. Built around Shimano’s Side Swing architecture, it delivers efficient actuation and clean integration on frames designed for contemporary cable routing.

Side Swing Actuation

The Side Swing mechanism repositions the linkage to operate laterally, improving leverage and reducing cable friction. The result is a more direct shift response with lower input force at the shifter — especially noticeable under load.

Mid Clamp Mounting Position

This derailleur uses a mid clamp (band clamp) mounting system, fixing securely to the seat tube. It offers solid alignment and broad compatibility for frames without a braze-on mount, maintaining consistent cage positioning for accurate shifts.

Front Pull Cable Routing – Precise Configuration

The FD-U4000-M is designed specifically for front pull cable routing. The shift cable approaches from the front of the derailleur and is anchored on the forward-facing cable arm.

This creates a straight cable path from the down tube into the derailleur, minimising friction and avoiding the directional changes seen in top- or bottom-pull systems. The result is consistent cable tension and predictable shift actuation.

Drivetrain Compatibility & Capacity

Optimised for Shimano CUES 2x systems, the FD-U4000-M is designed around the following parameters:

• Recommended chainring sizes: typically 36–22T or 40–26T combinations
• Maximum outer chainring size: 40T
• Total capacity: 14T (difference between outer and inner chainrings)

These parameters ensure correct cage geometry and shift timing, giving reliable chain pickup and release across the full range.

Built for Shimano CUES Systems

As part of the Shimano CUES platform, this derailleur is tuned for durability and stable shifting performance over extended use, making it well suited to high-mileage and mixed-terrain riding.

Key Features:

• Compatible with Shimano CUES 9/10-speed drivetrains
• Designed for double (2x) chainring setups
• Mid clamp (band clamp) mounting
• Front pull cable routing (forward cable entry)
• Side Swing mechanism for efficient actuation
• Max outer ring: 40T
• Total capacity: 14T

The Shimano CUES FD-U4000-M is all about controlled efficiency — direct cable routing, stable mounting, and shifting that stays sharp when it counts.

DELIVERY

Delivery to mainland UK addresses are free for orders over £40. Except when you choose delivery to a third party (Click and Collect) there is a charge of £5.95 to cover some of the additional cost the couriers charge for this service. If you choose to collect from Fawkes warehouse there is no shipping charge.

There will an additional charge for deliveries to Highlands and Islands. 

RETURNS TO FAWKES

Whether it’s a jersey that doesn’t fit, or the colour is not quite right, sometimes you’ll need to return items to us.

If an item is 'as new' and has not been used or fitted in any way, you can return it to us by post within 90 days of delivery for a refund. Please ensure that the goods are returned in their original packaging and are in an unused condition.

Please click HERE to print and then complete the returns form and include it inside your parcel.

If you wish you can use our Royal Mail Returns service please follow the instructions on the link below to return your parcel to us.

Royal Mail Returns Service

Please pack the item carefully to avoid damaged during shipping.

Customers need to pay the cost of return delivery unless the item is faulty and this will be deducted from your refund, currently £3.95.

If your have a large item e.g. Child seat, Bike, trailer etc. please contact our customer service team at Guy@fawkes-cycles.co.uk to arrange the best way to return your item, the cost will be deducted from your refund.

You will not receive a refund for the retail value of any free or promotional items you are sent, and you will be charged if they are not returned.

UNWANTED ITEMS

If you change your mind on your purchase, you have a full 90 days to return it for a refund. All Goods must be unused, in a saleable condition and in their original packaging with all labels still attached.

Please pack the item carefully to avoid damaged during shipping.

There are some exclusions to our 90 day returns policy, which are detailed below:

Nutritional products or those with a best before date must be returned within 28 days*

Any customised items such as wheel builds cannot be returned*

GPS systems such as sports watches or cycle computers can only be returned if unregistered*

For hygiene reasons, any intimate garments such as facemasks, underwear and swimsuits can only be returned if the items are faulty.

*Unless faulty

If you wish to return your item for a refund, please follow the returns procedure above.

We try our best to process all refunds within 14 working days. We'll refund your item via your original payment method.

You will not receive a refund for the retail value of any free items you are sent, and Fawkes may charge you for this item if you fail to return it

FAULTY ITEMS

If you feel that your purchase has developed a fault, then please contact us with photographs of the issue before returning any goods - we may be able to solve your problem without you incurring any further inconvenience.

If you find a fault with your item, send it back to us and we'll take a look at it as soon as we can. Items sent back to us will undergo an inspection and it may be necessary to send the item away to the manufacturer to confirm the fault. If we confirm a manufacturing fault, we'll happily replace or refund it.

Please pack the item carefully to avoid damaged during shipping. 

Faulty items should be returned within a reasonable time and in a clean and dry condition. PLEASE NOTE, WE WILL NOT PROCESS DIRTY ITEMS.

Please enclose all your details and a covering note explaining the fault and any other useful details.

We'll try to get back to you within 14 working days of receipt of your parcel, although during busy periods this may take slightly longer.

Your statutory rights are not affected.

We reserve the right to recharge return carriage on items where no fault is identified.

Customer Service Email: Guy@Fawkes-Cycles.co.uk

Please contact us for our Payment & Security policy.