Sunrace R86 8 Speed Rear Derailleur - Short Cage

Customer Reviews (3)
5 / 5| Write your review
£19.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Classic look to replace older Shimano road derailleurs.
Works with Shimano 6,7 and 8 speed road and MTB shifters and of course Sunrace 8s shfiers too.
- 2:1 Actuation ratio
- Speeds: 8
- Cage Type: (S) Short
- Mounting Type: (D) Direct
- Cable Adjuster: Composite
- Average Weight: 287g
Product Reviews (3)
Questions & Answers (8) Q & A
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Product Reviews (3)
Overall Product Rating 5 / 5
By Brian Callow
25 May 2022
5 / 5
I recommend this product
Prosworks very well
I ordered this to go on a Peugot Le Mans that was salvaged from the tip 25 years ago, sold to a friend and returned in January ready for the tip again. Sadly, the original Huret derailleur had been replaced by a big, black Shimano MTB one. This looks much better and just about maintains tension across 52-34 front rings and a Sunrace 14-28 freewheel.
By Graham Borley
15 Apr 2020
5 / 5
I recommend this product
Great replacement for old rear deraliea easy to fit and set up great performance even when changing under pressure climbing up hill.
Amazing value, impeccable performance
By Dave Clayton
06 Nov 2019
5 / 5
I recommend this product
ConsNone so far!
ProsPerformance, price, looks
An absolute steal at this price! Brilliant little mech with a vintage look.
Questions & Answers (8)
Would this rear mech be OK for a triple chainset on a road bike
02 Feb 2021
chainrings are 52/42/30, and rear rear cassette 11-28T
Thank you for your enquiry, no this item would not be suitable for a triple

Thanks: WD 02/02/2021
Will this cope with a total chain wrap of 28T, i.e. 13-25 rear and 34/50 front (12 16=28)?
15 Oct 2020
Yes, this will be fine.

Thanks - 16/10/20
Cassette size
15 Mar 2019
Hello, you said in a previous Q&A that this mech would only reach 28T because it's a short cage. Is it purely down to taking up the chain slack? In which case would it make 32T if there was only a single chainset up front?
This is due to the physical position of the upper jockey wheel, with a single, this may suit a 32t better, but we would say its likely not to work .

Thanks - 18/03/19
What is the maximum tooth capacity please?
09 Sep 2018
28t would be the largest as its a short cage.

Is this compatible with an indexing system?
27 Jun 2018
Yes, Shimano 8 speed compatible.

can i use this for 5 gears only ?
14 Oct 2017
and if not.. which one would you recommend ?


As the spacing between the gears is the same on 5, 6, 7 and 8spd cassettes/freewheels you should be fine to use this derailleur with only 5 gears. You will need to make sure you adjust the limit screws correctly though to prevent you from being able to over shift it off of the cassette.

Can I Use With A 7 Speed Cassette?
27 Dec 2016

This derailleur can indeed be used with an 7spd cassette.

Capacity And Maximum Teeth?
27 Jul 2015

This Sunrace rear derailleur can cope with cassettes up to 28T for the largest sprocket.