Great points. So when I am resurfacing my tires up to 220 grit, what is the desired end state as far as look and feel? Tires should be almost glass smooth again? Should the edges be rounded or sanded to be blocked or not sanded past the edge lines?
Ryan,
The fast dudes tell me to still resurface every race. They tell me 80 then 160 then 220. We cut back to 160 only at this time. They will have cross hatch and the same feel. I go line to line. With it on a resurfacing machine and a multi speed polisher. I set the polisher to 20. Harbor Freight brand. My resurface machine is an old brake lathe with a 1" rear hub bolted on it. You can also use the nut from the brake lathe as a fast way to hold the wheel on. They will not be smooth unless you go to 220. they will be smoother, not shiny smooth. On the edges I just keep the same contour that they came. I resurface line on one side to lines on the other side. While its turning, soak it with simple green in a spray bottle. Go from left to right. spray it again and go right to left. Different tires will take different procedures, so you will have to just look at them after you do a pass.
If you are needing them smooth, I have seen maxxis that they prep and use a propane torch to burn it in and they come out smooth.