I'v got a Kawasaki KLT 200-C2 and that Lil' sucker will do 50+. The only thing's I'v done to it was replace the fuel filter and pull out some of the old burnt fiberglass stuffin' and carbon build up. I think 50+ ain't to bad for a guy my size ( I'm 6'2 265lbs ) riding it. I'd really like something a little bigger with more power and a full suspension. ( Mine's got front only ) I play on sand a LOT. I live on the Colorado ( In Texas ) and 50ac sand bars are not uncommon. When the river's low I can go right behind my house and drive down to the sand bar. You can ride sand for a good mile or so. My friend and I are the only one's around here with trikes so there hard to find. My KLT was givin' to me by my neighbor who got it for free. He couldn't get it to run. He gave it to me and in 15min I had it goin'. It just needed the carb cleaned. What's the best trike to buy? What's the easiest one's to find hi-po parts for? What's the best one bone stock? Any info ya'll got would be a big help!