Tange Seiki 1 1/8 Inch Threaded Headset - Silver

Customer Reviews (2)
4.5 / 5| Write your review
£21.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
For 1 1/8" (28.6 mm) fork steerers

- Crown Race: 29.8 mm
- Lock-Nut: 25.4 mm
- Frame Cups: 34.0 mm
- Bearings: Sealed cartridge
- Stack Height 38mm

Weight: 105g
Product Reviews (2)
Questions & Answers (10) Q & A
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Product Reviews (2)
Overall Product Rating 4.5 / 5
By Simon
29 Apr 2020
5 / 5
I recommend this product
ProsPrice, Seal ring built into locknut to prevent water ingress down stem
Great headset, seems well made, fairly light and functions as it should.
Brompton Replacement
By Anonymous
09 Jan 2016
4 / 5
I recommend this product
Conscan't find these in the USA
Proseasy to install, lightweight, economical
This is a very nice lightweight replacement for the stock, heavy steel headsets that come on Bromptons. Installation of the alloy cups into the headtube (hardest part of installing a headset) went smooth. The quality and finish are first rate.
Questions & Answers (10)
Bearing replacements?
02 Aug 2023
The bearing that they use is their 4T5-5 SUJ-2 sealed bearing 45°/45° 41/30.2/6.3mm however we do not have this as a stock item. The closest that we have to this is our item number 46968.
Kind Regards. JP 02/08/23
Suitable for Brompton Titanium Forks
09 Mar 2021
Hi is this suitable for Brompton titanium forks please? Thanks
Yes, these are suitable.

Is this headset the Tange Seiki Falcon FL270C.
08 Feb 2020
Thank you for your enquiry. Whilst the supplier doesn't list this as the Falcon FL270C we've checked the dimensions, bearings etc compared to the Tange headset in stock & they are identical.
Kind Regards. 12/02/20
Hello, does it fit on brompton titanium fork?
27 Apr 2019
Yes this will fit your Brompton no problem.

Thanks - 30/04/19
Hi can I use to replace my headset on my brompton 2017 3sp
08 Jul 2018
Hi can I use to replace the headset on my brompton 2017 3sp
Yes this will fit your Brompton no problem.

do you sell this headset in black ?
02 Jan 2018
Hi there,

We do not currently however this is a great alternative - SJS Cycles part number : 46159

I use it on a number of my own bikes and have fitted it to a few too!

Do I need a special bearing cup removal/ insertion tool for this on a Brompton frame?
04 Nov 2017

You do not need a Brompton specific tool, a normal headset cup press and removal tool will work.

Crown Race Size
30 Apr 2017

I've measured where the crown race sits on my fork to be 30mm. Will the 29.8mm crown race that comes with this headset fit?


The crown race that comes with this headset will be fine for use on your forks.

Are Spare Cartridges Readily Available? Do You Have Them In Stock?
27 Dec 2016

Unfortunately replacement cartridges are not available as spare parts so we are not able to supply them.

Re Tange # 390353
02 Aug 2016
Hi there, can you tell me if you have, or can get, the Tange headset for the Brompton in Black as well as the silver on the website - it's black i am after for my bike. Many thanks, Simon
Hi, unfortunately at the moment Brompton don't supply the headset in Black as a replacement part. However you could use any 1 1/8" threaded headset in Black so long as it has the same stack height. Regards