Marking seatpost insertion point

[Nibor]

silver sharpie?

 

[Kell]

When I hired a Brompton for a month while waiting for mine to be built it had the telescopic post so I used it every work day for four weeks and here's the thing.

I never needed to put the top bit down once.

By fully extending the bottom bit then setting the correct height by using the top bit, I found that when folding I could just undo the bottom clamp and leave the top bit sticking out.

This meant that on unfolding ready to ride, it was incredibly easy to get the correct height because it's set for you.

So the question is: Do you NEED to drop the top bit down every ride?

I think I've found a solution to my OP:

Set the top part of the seatpost to maximum extension (using the factory mark)
Set the bottom part to the required insertion length
Use the Brompton saddle height insert so that the bottom part extends to that position

This means the overall length will be correct when the top part is at maximum extension (easy to see and re-adjust when necessary) and the bottom part is extended to the pre-determined point set by the insert.

Still think it's easier the other way..