Brompton standard length seat post - silver
This is the standard length Brompton seatpost - made of steel
Length: 53.5cm / 21 inches
The Brompton seat post is available in 3 lengths and two colours
- Standard length - for riders up to 33 inch inside leg (this one)
- Extended length - for riders up to 35 inch inside leg - 6cm longer
- Telescopic - for taller riders
- Silver (this one)
- Black
Seat post compatibility:
The seat post is one of the components which is common across all Brompton folding bikes - so this silver standard length seat post would fit the following models:
- A Line
- C Line
- G Line
- P Line
- T Line
(In the early days of Brompton they used a titanium seatpost, then later there was also an aluminium seatpost available - these have now been discontinued - titanium due to supply issues and aluminium due to long term quality issues - the coating discoloured over time)
The Brompton seatpost has a 31.6 mm diameter through most of its length (with a flange at one end to stop it raising too far and a narrower end for the saddle to attach to)
The seatpost is installed on the Brompton from underneath (the flange at the bottom stops the seatpost being raised too far)
Remember: Never lubricate the seat post
We made this short video on how to remove and re-install a seatpost on your Brompton folding bike
Brompton 2021 Q part code: Q102033
Brompton Q part code: QSP0P
Brompton part number: 9037056