That billet FW from Dover looks good, but it's still 3.5 pounds. I think that's what my ARC weighs, maybe even a little more. I was hoping to get a lot quicker revs out of my billet, but it didn't happen. I wonder how dangerous this Kohler would be? I feel like the real proble with flywheels is how well the magnets are installed, not the steel itself. If a magnet lets go, it's gonna get messy. Is the Kohler safe at 3600rpms? Up to 6000? Higher? Less than 2lbs is light. I'd love to hear the motor rev with it. I think a stock flywheel is about 5 or 6 lbs.