I an 6'1" and 341lbs. (I was 351 when I got this bike at the first of this year) and I am comfortable on my 20" Montague Paratrooper. I have a couple inches left I could go up on the seat post. I sent several emails to the company to find the weight spec for the bike and all I got back was 'you should be fine' It wasn't until after I got it that I learned the weight limit is about 250lbs. I figured what the heck I have a no questions asked 90 day return on it so I will give it a shot. I am careful on it mainly for my weight. I am treating it more like people would treat a race or road bike. Avoiding curbs and big potholes and nothing crazy. Only smooth trails and pavement for me at least until my weight comes down more. I have been looking over it very carefully after each ride for signs that I'm too fat and have not found any. I am planning on changing out the front fork though. I want a stiffer shock. I have not bottomed this one out while riding but I find that on quick turns with my weight it dips farther then I like and can give an unstable feeling (but I am 60lbs heavier then you).

This is my .02, good luck with your search.