I know this bike he is talkng about (if it's the same one I'm thinking of) I bought it from him and the 4 pokes hate me...The first day I rode it in the sand and did a few runs up the hill I had a sore neck from whip lash, my forearms hurt from the death grip I had so I wouldn't fall off the back, my shoulders hurt....my whole body was sore.....it was awesome.
You'll not be disappointed with either CPI's or shearers if you go that direction