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Chain Tensioner - Black

Customer Reviews (2)

5 / 5| Write your review

£14.99

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Manufacturer :

SJS Cycles part number :

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Details

- For single speed, fixies, BMX and hub gears.
- Aluminium
- Black
- Arm length approx. 68 mm

Product Reviews (2)

Questions & Answers (6) Q & A

Specification

Downloads

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Product Reviews (2)

Overall Product Rating 5 / 5

By Toby

27 Mar 2020

5 / 5

I recommend this product

ConsNone

ProsPrice - quality

Converted a cassette bike to alfine hub gear chain tensioner was fantastic.

Very good

By Pierre Noel

18 Mar 2019

5 / 5

I recommend this product

ConsNone

Prossimple and powerful

Very simple, easy to fit and powerful chain tensioner. A must have when you convert a vertical drop bike into single speed.

Questions & Answers (6)

11 speed chain

By Adam

05 Sep 2026

Will this work converting with an 11 speed chain? Will be using it with a Zwift cog to replace a broken derailleur, but retaining the chainset so 11spd chain needs to stay.

SJS Customer Service:

Hi
Thank you for your enquiry. Unfortunately this wouldn't work with an 11 speed chain as the chain would be too narrow to fit over the teeth on the jockey wheel correctly, the narrowest chain that would be compatible would be 9 speed.
Kind Regards. JP 07/09/26

Chain length

By Harv

18 Oct 2023

Is there any guidance with this as to how the chain should be length-wise before you fit the tensioner. Of course it needs to be slack enough to be able to comfortably get the chain off the front ring or the wheel out of the vertical drop out, but should it be any slacker than that, and then just let the tensioner do its job?

SJS Customer Service:

It is recommended to have as much chain wrapped around the sprocket as is possible, too little and the chain will slip. SK 19/10/23

Will this fit a Pashley Parabike with Sturmey Archer Hub Gear?

By William Swift

04 Oct 2020

SJS Customer Service:

Hello, As we are not a Pashley dealer and have had no experience of this bike we cannot guarantee if this will fit or not.

Can I use this with a 1/8 th chain ? thanks

By Stef

02 Oct 2020

SJS Customer Service:

Hello, Yes you can use this with a 1/8th inch chain.

Can I use this with an alfine hub and a double chain ring. If I can't what would you recommend?

By Toby lant

27 Mar 2020

SJS Customer Service:

We could not recommend that a double chainring is a suitable option with an Alfine hub. We would need to know the two chainring sizes to make any advisory.

Thanks - 30/03/20

chain sizes

By ian stephens

02 Feb 2019

hi, does this work with 3/32 chains and if so will it work with 9 speed chain? thanks

SJS Customer Service:

Yes this will be suitable with a 9 speed 3/32 chain.

Thanks - 04/02/19