My flywheel is showing signs of wear--lots of small hairline cracks. I believe it is time for a replacement. Option 1: buy a new one from TRutland 700.00 Option 2: have this one machined down and a new hard steel insert installed. Option 3: make one( or buy aftermarket) from aluminum with an insert. anyone try options 2 or 3 yet??? anyone have any info on flywheel companies that been tried?