Crank brothers joplin

dErZ

I know the above seat post is 382mm long but how much of that is useable? on my thomson its 410mm long but you loose 100mm.

Hope someone can help

nicklouse

you will have about the same insert length if that is what you are asking.

dErZ

so realistically you'd loose 10% its just looking at the pix there are 2 lines on the seat tube..

dhxcme

i'd say more like 25%

dErZ

yeah sorry my maths is obviously wak