Brompton Press-Fit Replacement Seat Post Bung

Customer Reviews (2)
3.5 / 5| Write your review
£6.00 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
A rubber bung, fitted to the bottom of the seat post to stop damage to seatpost/flooring when folded.

Fits any Brompton ever made.

Weight: 14g

Please note Brompton have selling restrictions to some countries who have their own dealers. If you are unsure please contact our sales team.
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Product Reviews (2)
Overall Product Rating 3.5 / 5
By Jonathan
17 Feb 2023
2 / 5
Consoverpriced, easily lost
This new design is significantly lighter than the older expanding-bolt design. However, much more likely to be knocked out and lost, so replacements will be needed more frequently. I see no good reason that these are not supplied as (say) a 5- or even 10-pack at the same price.
By Anonymous
09 Mar 2022
5 / 5
I recommend this product
ProsLooks a bit lighter than the older rubber one
Haven't had time to fit it yet but it looks like it will do the job.
Questions & Answers (5)
What’s the diameter for this bung?
04 Feb 2021
Thank you for your enquiry, it is around 30mm

WD 05/02/2021
Seatpost Bung
26 May 2020
I have a brompton from 2003. Fits this seatpost bung my old brompton too?
Yes, the post size is still the same.

Thanks- 25/02/20
Assuming that both ends of the seat post are the same, could't you fit a bung at each end?
19 Aug 2019
No, the top of the post is much smaller.

Thanks - 20/08/19
Is this a replacement for the older, bigger type, which was screwed on?
18 Apr 2018
Is the older type not available anymore. And will the new one be just as good to prevent my folded Brommie to run away on its Eazy-Wheels.
Hi there,

Yes this is the current replacement.

Is Available A Bung To Put On The Top Of Brompton Seatpost Under Saddle?
04 Jun 2017

This seatpost bung fits to the base of the seatpost, there is unfortunately nothing available for the top of the seatpost.