A couple weeks ago in the UP the trails were perfect, so I was tearing it up for a good 150 miles. Those miles were nothing under 80mph. I stopped, then took off wide open got up to about 85, and I was like what the heck. Looked down and the tach was way down where it should not be. It read 8800 rpms. Rode it like that till I could get to a ski-doo shop the next day at Calumet. They took it apart and said the black buttons in the secondary melted. Has anybody else experienced this? I don't have RER but do have the HP27 clutch. I was also told my sled had an rpm limiter. Is that true? How many rpms?