Reply to "Looking for Mangusta wheels...."

Soap-box time! Relative to cast magnesium wheels, the stuff has the peculiar property of 'age-hardening', getting harder and more brittle while sitting quietly on a shelf, or mounted on a seldom-used car. Aircraft engineers refer to magnesium as 'compressed corrosion' from its chemical reactivity and porosity. Internal stresses build up in the castings until cracks appear. The stresses can be annealed in Mom's oven at 350 F degrees for 3 hours followed by VERY slow cooling. If possible, take the hot wheel out, wrap it in blankets & return the wheel to the still hot but 'off' oven until the next day. Annealing heat will turn the stock protective paint tan. Interestingly, professional powder-coating anneals mag during the curing process, as does properly done TIG-weld repairs. Annealing of all magnesium Campys should probably be done for safety every 10 years or so.
Second, three piece aluminum 'racing' wheels do not belong on street cars. I've seen far too many break on the road, in all sorts of interesting and expensive ways. The thin inners & outers fracture, the connecting bolts to the cast centers pull out or unloosen, centers break in two and catastrophic decompression occurs. One owner had bolts come loose coming down Mt Charleston in Las Vegas. When the dust settled, his Pantera was 100 feet off the road and had no front suspension. The last one I'd heard failing was last Fall, parked after a 'spirited' drive; suddenly there was a loud noise and one 3-piece 17x 11 rear wheel was 4-piece! Unless you can do a thorough inspection of the parts like racing teams do (sometimes with X-ray), stay away from all 3-piece wheels. Race teams usually throw away wheel halves after a year of use, or after any off-road excursion. Please do not use these- I have no spare friends!