The Di2 front derailleur's operation is pioneering, smooth shifting is guaranteed thanks to wireless communication with the gear levers. What's more, shifting the rear derailleur automatically trims the front derailleurFull and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratioThe removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shiftsThe front derailleur also trims automatically; the cage moves in response to the position of the rear derailleur on the cassette to ensure no chain rub and a quiet unobtrusive ride, enabling you to concentrate on the road aheadDesigned to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance on bikes with 135 / 142 mm O.L.D.Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available12-speed E-tube SD300 wire compatible

Price Match at J E James

We understand that price is important, so we regularly price check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.

Terms and conditions apply.

Please note: Manufacturers can sometimes change the specification of the products from time to time.

Colours	Grey
Sizes	12-SPEED
Brand	Shimano Ultegra
Barcodes	4550170875305
SKUs / Part Numbers	FDR8150F

Free UK Delivery On Orders Over £30

All of our UK Customers can select our FREE standard delivery option on any order over £30 (except exclusions). Learn more about J E James delivery services. Click here

Items will be sent via Royal Mail 48hr - There is an option for Express Delivery (£2.99 for orders over £30, or £4.99 for orders under £30), items will be sent via our courier service (Does not include Northern Ireland, Scottish Highlands or Channel Islands).

Bike Build & Delivery

We are proud to say that all of our bikes are pre-built and go through a rigorous inspection procedure before the bike arrives at your doorstep. In order to minimise packaging and transit damage, all bikes are partially dismantled for shipping. Please note that some assembly will be required, which we recommend be carried out by an experienced mechanic. To help with assembly we have created our helpful assembly guide. Click here to view assembly guide

Click & Collect

J E James Cycles Click and Collect feature is a great way of securing your product before coming into store selecting your nearest J E James Cycle branch for free. Once your product is ready for collection your chosen J E James Branch will contact you via text or telephone. Meaning you do not make a wasted trip. Please do not come into store until you receive this message. Learn more about J E James Click and Collect. Click here

International delivery

We have many happy customers based outside of the UK because we try and keep our delivery charges to minimum. The best way to calculate how much delivery of any item via our website is to add products to your cart and proceed through the checkout process, please then enter your delivery details. Our website at this time will calculate the cost of delivery to your country. Orders delivered outside of the EU are exempt from VAT. Learn more about J E James Cycles international delivery. Please click here

Returns Made Easy

Our main aim is to make sure you are happy with your purchase. You can contact our returns department directly via email: [email protected]

Learn more about our returns policy here.

Shimano Ultegra FD-R8150 Di2 12-speed E-tube Front Derailleur

Shimano Ultegra Shimano Ultegra FD-R8150 Di2 12-speed E-tube Front Derailleur