Direct, instant, lightweight, strong and reliable. All the things that you could want from your derailleur, that's what the Shimano Ultegra R8050 Di2 11-Speed Rear Derailleur, SS delivers. Compatible with 11-speed Di2 systems and with a ratio tolerance ranging from 11-25 to 11-30 teeth on your cassette, this programmed automatic motion derailleur allows for simple swinging motion over your gearing for easy use, and simple shifting.
Shimano Ultegra R8050 Di2 11-Speed Rear Derailleur, SS
Shimano Ultegra 8050 Di2 11-Speed Rear Derailleur, SS
Part of the Ultegra R8000 family, the Shimano Ultegra R8050 Di2 11-Speed Rear Derailleur, SS is a dialled in performance derailleur, ready to provide you with the on the dot precision that is a staple of electronic shifting. Programmed, automatic motion allowing the rider to effectively pinpoint their preferred gear in an instant, this rear derailleur is the key to seamless, slick shifting.
Benefitting from a low-profile shadow design construction that reduces the risk of damage in the event of a crash, this derailleur also remains more aerodynamic on the bike, sitting poised and perfectly placed to flick between your preferred gear. Quick, smooth, and effortless shifting provided with little more impetus than a mouse-click, this derailleur assures you of a direct transmission that responds instantly to your commands.
Freed from the constraints of traditional cabling, this derailleur is reliable in it's shifting patterns and relies not on stretching cables, but on electronic impulses to make its movements across your cassette. Compatible with 11-speed Di2 systems, this derailleur is made from high tolerance cold forged aluminium for incredible durability and a longer lifespan. A low friction shifting action guaranteed by four self-lubricating micro-machined fluorine coated link pivot bushings, you can be sure of joy each time you switch your gear.
- Di2 compatible
- Low-profile Shadow design construction reduces risk of damage in a crash
- Programmed automatic motion
- Quick, smooth and effortless to shift
- The removal of traditional mechanical cables eliminates corrosion and stretching
- Derailleur contains a saver (fuse) function protecting from strong impacts
- High tolerance cold forged aluminium link plates and body construction
- Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting
- 11-speed E-tube Di2 compatible
- Wide gear ratio compatible with 11-25 up to 11-30T
PRODUCT REF: RDR8050SS
UK Delivery Options
Free Delivery on all orders over £30
Estimated delivery within 4 working days (a delivery charge of £1.99 for orders under £30.00 will apply)
CollectPlus Delivery - £1.99
Have your order delivered to your local shop for just £1.99! For Highlands and Islands, please allow up to 5 working days. Orders can be shipped to UK CollectPlus locations specified on the SigmaSport.co.uk website where they will be held awaiting collection for a period of 10 days.
Orders placed are normally dispatched within 2 working days.
Priority 1st Class Delivery - £2.99
Estimated delivery within 2 working days. For Highlands and Islands, please allow up to 5 working days.
Next Working Day Delivery* - £4.99
A guaranteed tracked courier delivery, place your order before 3pm, deliveries are made Monday to Friday.
Saturday pre 12 Delivery - £4.99
Saturday delivery orders must be placed by 1pm Friday and are only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Saturday pre 12pm by courier. Package must be signed for upon delivery.
Sunday pre 12 Delivery - £4.99
Sunday delivery orders must be placed by 1pm Friday and are only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Sunday pre 12pm by courier. Package must be signed for upon delivery.
Reserve and Collect** - FREE
Reserve & Collect is available on all items marked 'Collection'. It is a FREE delivery option that allows you to collect your order from either our Sigma Sport Store, Hampton Wick or our Reserve & Collect location in Esher. Just select the Reserve & Collect button in the basket.
* Next Working Day delivery is only available on items in stock in our warehouse and excludes pre- order items. Next Day refers to the next working day, Bank Holidays will add an extra working day to the estimated delivery lead times. UK next day excludes Saturday deliveries. This service is not available to some remote postcode areas. Please contact us for help.
** Reserve and Collect Collections - Clothing, parts and accessories: Next day. Orders placed on Friday, Saturday or Sunday will be available for collection after midday on the Monday (excluding Bank Holidays). Bikes: 4 days if in stock at the store, collect in up to 7 days (sometimes quicker) if in stock at warehouse.
London Same Day (Order Before 1pm)
We offer a Same Day delivery service into London. The cost is £25.00 under 2Kg and £35 over 2Kg. Place your order before 1pm, deliveries are made Monday to Friday. Please note this option excludes bicycles.
More information on our Same Day delivery options.
All our bikes are fully checked and tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for despatch. All you have to do is add the pedals, rotate and tighten the handlebars. Typically we can deliver your bike in 7 - 10 working days.
Deliveries are made Monday to Friday on a pre-12pm delivery. One of our customer service team will be in contact to arrange a convenient day for delivery.
More information on all our UK delivery options.
International Delivery and Returns
We ship to over 100 countries using DHL for a fast and reliable delivery. To see the delivery cost, please add your items to the basket and proceed to the checkout.
International customers have 30 days from their order date to return the order. Goods must be returned in new condition with all original packaging intact and tags attached.
For full details, see this link.
Free UK Returns
We offer a free returns service for our UK customers. Sigma Sport will happily refund or exchange any item purchased at Sigma Sport, excluding Sigma Sport gift vouchers and personalised products except when faulty.
More information on the Sigma Sport returns procedure.
Please alert me via email when this product is back in stock.