I am 280, and just got a Z400, I love it, plenty of power for now, as my skills get better, I will do mods for more power. But it handles great now. Just running 3rd at 3/4 gas and pulling back with a foward stance, it carries the front and the back just stays in contact to keep the power going to the ground. Fills real nice. Arms are sore today, but I will get over it.