I can't find the chart now, of course. I think the limit was 300 or 325 (this might have changed with the new frame, not sure). I've been riding my Advanced 1 from 290 pounds down to 270 this year. I broke 1 spoke nipple on the non drive side in the back, which I've chaulked up to "just one of those things", I don't think it's my fluffiness that caused it. I am riding on 25mm tires, 23mm are a bit on the small side for me, 28mm GP4000SII do not fit on the rear of this frame.