What's up? The name is Matt and I live in the states.
I'm 28 and I've been riding all-mountain and XC for years but never any street or trials. Justy recently, I built up a KHS DJ 200 (got the chromoly frame real cheap) as a beginner trials bike with old bike parts I had lying around the house. 26" wheels, XT v-brakes, truvativ crank/isis BB with Wellgo platform pedals. I run a 22T chainring and 17T rear cog. Rear hub is a Shimano XT and front is a generic no name. I have a cheap 80mm travel suspension fork on it now which is firm but by new chromoly rigid fork should be here any day.
It's not a trials specific bike by any means, but I have been having a blast practicing (despite the way my shins and knees look). I'm still no good as far as trialsin goes, but the improvements my other riding styles have seen from my trials practice is amazing. As my skill progresses, I hope to pick up more trials specific parts (wheels/hubs, crank, etc); but first thing is first, when I get some dough I'm going for some shin protection : )
Peace.