The wheels are relatively new Marchesini's, and the tires were mounted, and balanced by the same place that always does them for me, so I don't think that is it. I have been riding for 30 years, and always on sportbikes, and I have ridden very hard for the last 20. I am very used to very high HP bikes, and high speed riding. I have had Scott's dampners on all of my bikes for the last 12 years, and am very familiar with them. I have it fairly tight now. I know that just cranking the dampner up is just masking something else, and besides I do not want to be fighting the dampner that much every time I turn. The bike is a real beast. It will effortlessly power wheelie at 140 in 4th. I've had it come up in 5th, and even 6th when it is cold out. I'm fine with that, but it just seems like whenever it does power wheelie at high speed it wants to shake it head. I have my suspension stiff as that is what I like for the hard riding that I do, but I just think it is a geometry issue. I was thinking maybe to slide the forks up through the triple tree's a little, and raise the rear end a little to change the pitch angle of the bike, and maybe that would help. I've never really messed with suspension settings that much, I've always worried more about the HP issue. I certainly have that covered with this bike, so now I need to get the suspension to handle it. I know there are plenty of people on this board who have a lot of suspension experience and that is why I asked. I do appreciate all of the help. Thanks. Mike.