Hello, I'm looking at getting a trials bike to keep up with my 6yr old on the oset 16! Tempted by an oset 20 for more riding area options and if anyone has any opinions or exp. on these please share!? but can't help thinking I could buy a decent (proper)bike for similar money..1500 ish, would I be better off with 125/200 as I've not had a trials bike since juniors ty 80/175 and not sure if a 250 or above would be too much power, have had mx and road bikes (lots) since ty's though . Any input appreciated. Thanks