No, i've been riding for a couple, three years now.. i've had an r6, went to a 954, now i'm back on another 600.. I agree with you kevinwilly about the weight not being an issue unless 300+ lbs.. I just had a friend of mine today whose 6'5 around 240 get a brand new R1 as a second bike because the 06 R6 wasn't "big" enough for him... He had a vf500 for about 6 months.. I'm not completely worried about him, he seemed ok riding it home (about 60) miles.. But I am gona be worried about him when we're in the canyons and he has that thing around 10k rpms coming up on a corner..