Finally got the disc brake conversion kit and installed it on my 99 foreman 450 S. Has anyone else installed this kit on a 450S and had problems. The new "studs" that came with my kit would not screw all the way down into the 1/2" spacer which left the rotor loose. Even after putting in the extra spacers on (included with the kit) it still would not snug up. It seems that the threads need to be cut longer on the bolts they sent. I couldn't find a machine shop that could cut the threads longer, nor could I find more bolts that would work ( I checked Lowes, Fastenal, etc.). I finally settled for extra spacers and placed them between the hub and 1/2" spacer. This helped, but now the heads of the bolts (behind the rotors) are rubbing against the edge of the brake caliper. I grinded them down and that seemed to help. I still have more grinding to do to alleviate them from rubbing. After riding around in the yard, the brakes do make a world of difference. Now maybe when I go back to West Virginia, I'll finally be able to stop when going downhill !!