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Joseph Kuosac Headset - 1 1/8" - Black

Customer Reviews (4)

5 / 5| Write your review

£24.99

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Details

A great upgrade from the stock Brompton headset.
Smooth and durable sealed bearings.
To fit 1 1/8" threaded frames / forks.

When fitting to a Brompton, we advise removing the spacer.

PLEASE NOTE: This headset is suitable for use with Brompton's Titanium fork, however previous versions were not.

Related products

Brompton Headset Bearing Set 1 1/8" - Steel - Black £20 Inc VAT Quick view

Joseph Kuosac Sealed Headset - 1 1/8" - Silver £24.99 Inc VAT Quick view

Product Reviews (4)

Overall Product Rating 5 / 5

Good value for a solid upgrade

By Charlie

12 May 2024

5 / 5

I recommend this product

My Brompton B75's OEM headset was getting somewhat flaccid and noodly, so I looked into alternatives. This seemed to have decent reviews as well as being about the right price, as opposed to CK's offerings which, whilst I am sure they are great, cost a packet. Fitting was relatively straightforward and the steering now feels great - no hint of play. Interestingly, I can also now ride no-handed, as opposed to the unnerving wobbliness that used to develop immediately before. This might have been due to the setting-up of the original headset at the factory, but it's nice to have rectified that too.

Great product and VFM

By Anonymous

15 Sep 2022

5 / 5

I recommend this product

ConsNone

ProsBrilliant

Simply brilliant for the money, very smooth when in use and a great upgrade.

Nice upgrade

By Dave Phillimore

06 Mar 2021

5 / 5

I recommend this product

Consnone

Prossealed bearing ,over the stock brompton one

I Bought this headset to replace the stock brompton one, As its uses sealed bearings ,Its a very nice headset for the money . it is definitely a worthwhile upgrade for your brompton

Top Finish

By Jay W

02 Nov 2018

5 / 5

I recommend this product

ConsNone

ProsQuality

Bought this and other JK items as finishing kit touches. It will be great when my new colour scheme is finished. Really pleased

Questions & Answers (10)

Can be used in a Brompton electric

By Jorge Tunon

28 Jun 2022

I need to change this, and I thought that this would be a nice upgrade. Would it fit in an electric Brompton?

SJS Customer Service:

Hi
Thank you for your enquiry. Yes, this headset is compatible with the Brompton Electric bike.
Kind Regards. JP 29/06/22

What's the reason JK headset can't be install on Brompton Titanium fork?

By Paddy

05 Aug 2021

SJS Customer Service:

The inside of the cup binds on the steerer tube.

Thanks! 05/08/21 RH

Re-stock

By Chris

18 Jul 2020

Hi, due you have any idea when this will be back in stock?
Thanks
Chris

SJS Customer Service:

Hi, we are expecting stock at the end of July. Thanks

Is this suitable for SL2-X 2017 pls?

By paul

28 Feb 2020

SJS Customer Service:

No, these are not suitable for use with Brompton's Titanium fork.

Use - SJS Cycles part number : 52687

Thanks - 03/03/20

What's the stack height of this?

By Steve

10 Oct 2019

Hi

What's the overall stack height of this compared to a Brompton one?

I ask as I have a JK one installed on my 2015 M6L (steel forks) and have the issue that there are only 3 or 4 threads of the threaded forks' column/stem engaged with the top locknut, which suggests the stack height is greater.

Thanks

SJS Customer Service:

Hi there,

The stack height is approximately 48mm.

Thanks.

What's included?

By Steve

13 Jun 2019

Hi

Does this headset kit include everything needed to replace the Brompton headset i.e. absolutely everything top and bottom of the head tube, including seals?

Presumably you need to prise off the Brompton bearing races/cups in order to replace with the JK cartridge bearing? If so, is this a difficult job?

And what size spanners are needed for the nut and locknut, please?

Thanks

SJS Customer Service:

Yes, the complete headset, as pictured, is included.

The lock nuts are for 36mm spanners and yes you would need to remove the stock cups and crown race. - very easy if you have the correct tools / knowledge/experience.

Thanks - 14/06/19

Coming loose every few days

By Florin

14 May 2019

Hi,

I've bought this and had it fitted a few months back by Evans on a Golden Brompton Service, but I need to tighten it every few days and always find myself taking the headset wrenches with me... is this possibly because of a defective headset, or was it a wrong fitting from the very beginning? Would you be able to advise? I think it's quite dangerous to have it come loose all the time.

Thanks

SJS Customer Service:

Hi there,

This sounds like it has not been fitted properly, the two nuts need to be locked off against each other properly.

Thanks - 14/05/19

Why won’t it fit the titanium forks and is it lighter than the standard unit?

By Ray harper

30 Apr 2019

SJS Customer Service:

The lower section fouls / binds on the steerer tube. Yes it is lighter, we recommend using SJS Cycles part number : 35038

Thanks - 30/04/19

Can it be used on any Brompton?

By Florin

02 Dec 2018

Apart from Ti fork, I've read that. Thanks

SJS Customer Service:

Yes, we have fitted to many Bromptons including staff bikes!

Thanks - 03/12/18

Sealed and it looseball?

By Ryan

08 Nov 2017

SJS Customer Service:

Hi,

These headsets use sealed cartridge bearings.

Thanks.