I am wondering what causes the Nitrous to have a 165lb weight limit? What is the weakest link? I am wondering because I am about 170lbs, up to 175 due to my disregard for proper nutrition and affinity for sweetwater. I just finished my first race which I did on a titanium hardtail and although overall the bike felt good, there were some rocky sections where my rear end was bouncing so bad I couldn't get any traction, at least not enough to accelerate through. I was thinking that a short travel full suspension frame would be ideal. I got to thinking about the Nitrous and a few others, like the ML7. The problem is that I don't know what other sub 5lb frames are out there that have squishy rear?