cheap secondhand playbike suggestions

plain lazy
plain lazy Posts: 137
edited March 2010 in MTB buying advice
Hi, I'm looking for a playbike to practise my skills and generally mess about on so i dont kill my propper bike. I was originally looking at DMR bikes and similar on ebay but then spotted 26 inch wheel trials bikes. Are these rideable or only suited to leaping from walls to benches to lamp post etc like danny Mac. Was thinking that with a slightly higher gear ratio this could work a treat.

any advice?

onza look nice although i'd be opting for one with a saddle