Man I used to ride a DMR transition with marrzo dirt jumpers etc. Now I ride an echo, seriously rigids feel pretty crappy now, but in a few months you will not want pikes. If you want a street bike.. get a street bike like a dmr or somthing, if you want a trials bike get a proper trials bike, most trials frames with a design like your after already have high bbs if you shove pikes on there the bb will be RETARDELY high, considering pikes go from 95-140mm. Doing stuff to front etc. WILL be gash with sus. Ryan leech is pretty inhuman, but even he runs super low (like 50mm or so) mx comp forks as there about the best weight to strength fork you can go with. Pikes weigh a ton. Like I said either get a street bike or get a trials bike, trying to mix the two will feel like shite. to put it bluntly.