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Shimano Ultegra R8050 Di2 Rear Derailleur

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The RD-R8050 will help you maintain race concentration through intuitive shift control.

The RD-R8050 will help you maintain race concentration through intuitive shift control.

Top Features:

  • Model Number: RD-R8050
  • Series: Ultegra Di2
  • Maximum Sprocket: 30T
  • Minimum Sprocket: 11T
  • Maximum Front Difference: 16T
  • Average Weight: 242 g (SS type), 249 g (GS type)

Product Data

  • Rear Derailleur: Shimano Ultegra
  • Speed: 11 Speed
  • Commuter: Yes
  • Touring: Yes
  • Cyclocross: Yes
  • Time Trial: Yes
  • Road: Yes

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Description

The new low-profile design of Shimano Shadow RD increases its shift stability and gives the rear derailleur a sleek and integrated appearance. Race endurance is guaranteed, through the optimized slant angle. The wide compatibility of two specific rear derailleurs (SS for cassettes 11-25T to 11-30T and GS 11-28T to 11-34T) will secure a smooth ride in even the highest and steepest mountain areas.

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Returns

We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.

Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.

Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.
More information on Wiggle's return policy

Customer Reviews

Shimano Ultegra R8050 Di2 Rear Derailleur is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by Topgun from Great Di2 Mech This is a very good rear mech. Upgraded from Ultegra 6870 rear mech. Very easy to install and set up, connected to etube app and updates rear mech firmware with no issues. Very crisp shifting and give me the opportunity to fit a 30T cassette if needed. This R8050 rear mech works with all other 6870 components.
Date published: 2019-07-08
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Q & A

r785 sti and r8050 mechs

is the new ultegra r8050 front and rear mechs compatible with r785 road disc brake sti levers. i have a road frame which has post mount calliper mounts front and rear, i wanted to buy the new dura ace r9120 groupset but shimanos new road disc callipers are all flat mount, i am told that there is no adapter to solve this issue, also i thought i could use existing rs785 callipers with new ultegra di2 disc sti levers and then i learned that the newer sti levers use bh 90 hoses and the older callipers use bh59 , are there any adjustments i can make. can i at least use r785 sti levers with new r8050 mechs
Asked by: paddy001
I can advise that provided your shifters are di2 then this should be suitable, please note you will need to reprogramme your di2 if you make any changes.
Answered by: WiggleHarryS
Date published: 2017-10-12

Compatibility?

Will this rear deralier be compatable with the previous ulterga Di2 groupset.I intend to use a 11-30 cassette but if I can use this deralier it'll save a lot of money changing my entire groupset.
Asked by: Splat35
I can confirm this will be cross compatible with the previous generate 11 speed Ultegra Di2.
Answered by: Wigglealexm
Date published: 2018-04-07

Will it work with 52-36(front) x 14-28 (rear)

Asked by: vmsrosa
Indeed an SS rear derailleur will run upto a 30t maximum.
Answered by: WiggleLiam
Date published: 2019-11-12

Compatibility with older version with an 11-32 cassette

Can this be used with an 11-32 cassette older 6870 set up?
Asked by: pm1964
This will be suitable for use with a 6800 cassette.
Answered by: WiggleKris
Date published: 2019-02-20
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Wiggle Ltd. 1000 Lakeside, Suite 310, Third Floor N E Wing, Portsmouth, Hampshire, PO6 3EN, United Kingdom

VAT No: GB 884 2571 94 | Company No: 02667809

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Privacy Policy | Cookie Policy | Terms & conditions

© Wiggle Ltd. 2021.

Wiggle Ltd. 1000 Lakeside, Suite 310, Third Floor N E Wing, Portsmouth, Hampshire, PO6 3EN, United Kingdom

VAT No: GB 884 2571 94 | Company No: 02667809

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