the old USE posts were prett narrow – anything narrower than that?

I was think BMX posts but they tend to be headless…

25.4 is my best so far

http://www.ukbikestore.co.uk/product/61/sapb48e/push-seatpost-all-sizes.html

25.0

Thompson do 25.4 for BMX, no idea how long they are though. Plenty of BMX’s still using saddles with rails (well I am anyway).

The reason I’m asking is that I’ve got a mini BMX (not mine…) with a 22mm seatpost and seat unit (combined unit) but I’m tempted to swap the seat to a railed version and thus need a 22mm post with a clamp.

I may end up DIYing it by cutting the 22mm post and mating it to an old USE clamp unit I have in the spares box….

Reggie, do a search for oldschool (oldskool) BMX seat post on ebay. There are generally some 22 or possibly 22.2mm Odyssey or Haro ones with a micro-adjust clamp on there.

There you go – http://sports.shop.ebay.co.uk/i.html?_nkw=haro+seat+post&_sacat=7294&_sop=10&_dmpt=UK_sportsleisure_cycling_bikeparts_SR&_odkw=odyssey+seat+post&_osacat=7294&_trksid=p3286.c0.m270.l1313 – a few Haro ones on that page, they’re 22.2mm though.

7/8ths. 22.2mm.

mama i think the shimano dx post was 22.2 with a micro head.new+boxed, its not going to be cheap though!