I also learned a thing about wheeling on black top. I had a new 1986 kx500 and had been riding open class bikes for ever. I wasn't a wheelie king but I was good. I started out in first gear got to that sweet spot and shifted through the gears. Somewhere along the way I decided to let it down a little and top it out in 5th. Well, when it was topped out and my 90mph wheelie was over the front tire came to the ground. It had not taken one turn for about 3/4 of a mile and when it hit the ground all I heard was a screech and blue smoke. At that point I was sliding down the pavement just behind the bike. It and I never left the road. The bike needed one grip and a new axle nut on the rear. I needed a whole new REAR or so it felt.