I inherited a set of Gold Marchesini 10 spoke magnesium wheels off a RC51 I bought earlier this year. I didn't know the history of the wheels and I know magnesium can crack etc. There were some paint chips here and there. I'm pretty particular about parts, so I sent them off for a complete check, refurbish and refinishing. I'm not sure that I will be keeping the wheels and will most likely be posting them on here for sale. My question is what color do you think is the most desirable? Gloss Black, a satin type black to match the frame or I'm considering the same gold or a flat bronze color. Again, I'm putting a good amount of money in these wheels and I'm probably going to sell them, so I'm just looking for what would sell best.
If they are cracked or fatigued there is no refurbishing process for those conditions. They can be tested with a magnaflux electrical system.
Many professional race teams change the tires on the wheels x amount of times and then throw them away for those reasons. Of course we use them much longer for street and trackday purposes, but you are correct in that magnesium wheels don't last forever.