Hello all. After the three R's, reading, researching and riding for a few months. I could not get my Kenda's to balance. Spin balance and beads, still got the shimmy from the OEM Kenda's no matter what I tried. It was maddening. It was ALWAYS there, just sometimes worse then others, especially at the 60-64mph. It was beyond annoying. After the Baja Ron bar add and the Fox Racing shocks, which really should not have impacted that constant shimmy IMHO, at times if the road was spectacularly smooth (Here in Washington, that is about 500 feet of road per 20K miles of roadway...yeah, they suck!!!) my Spyder would smooth out just enough to make me think that getting this machine dialed in was possible. Its rough pulling off tires that only have 2K miles on them and look brand new, but 10 inches of stick on weights made me say, is that the rim or the tire that is really that bad. Conclusion. Kenda OEM tires. Enough was enough. Bought Federal Formoza AZ01's. Les Schwab took off those Kenda's and put on the new Formoza tires. $29.00 per side. No beads. 20 pounds to start. Took them on a joy ride today. Put about 100 miles on them. First part was easy, but then through some twisty's, some hard braking and really tried to test the tires out. Observations. Ride was not harsh at 20 pounds. 0-84mph...smooth as silk. Through the twisty's, felt secure and not a slip. Overall responsiveness was no comparison. They are MUCH more responsive than the Kenda's. They are also non-directional, so just need the outside to the outside. I hit some rain that I did not expect and honestly I try to avoid rain. I will ride in the cold all day. No sweat. Rain just is not my buddy on a bike and never heard anyone say, man, I love riding in the rain. What I can say is I slowed down, but no hydroplaning what-so-ever at 65mph on a pretty wet freeway and when I did get into some corners on the wet. No problem. Bottom line for me is no shimmy and car tire or not, this was one of the best things I did for the Spyder and for me. With these on I truly believe I have this machine dialed in to the way it CAN and SHOULD have run from the dealer floor. For me with the purchase of the tires and mounting was about $160.00 was definitely one of best things I could have done for my Spyder. The cycle shop, kept saying Kenda made for this machine and they were the best option, never heard of an issue with them (other than getting a non-round tire to balance properly) and all the sales jargon, which of course he has to say. If I may be so bold. Forget the word "car" on these tires and just evaluate them on their performance. Two more comments. I kept the Kenda's "just in case" the Formosa's did not perform like they should and again I rode them hard today. First thing when I got him, the Kenda's went into the recycle bin. Other observation is, the 10 inch weigh strip went down to 3 weights on the same rim. I have 2 weights on the other rim. That tells me something. Not the rim, it was the tire. Lastly, again the response and the ride...almost perfect. If you make the change I strongly suspect, you will be very happy you did.