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Magnesium is the lightest metallic structural material available. [1] It is 1.5 times less dense than aluminium, so magnesium wheels can be designed to be significantly lighter than aluminium alloy wheels, while exhibiting comparable strength. Many competitive racing wheels are made of magnesium alloy. [2]
The term "mag wheels" became synonymous with die-cast wheels made from any material, from modern aluminium alloy wheels to plastic and composite wheels used on items like bicycles, wheelchairs, and skateboards. However, pure magnesium wheels are no longer produced, being found only on classic cars. Pure magnesium suffers from many problems.
Magnesium is a chemical element; it has symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic table) it occurs naturally only in combination with other elements and it almost always has an oxidation state of +2.
Magnesium alloys are mixtures of magnesium (the lightest structural metal) with other metals (called an alloy ), often aluminium, zinc, manganese, silicon, copper, rare earths and zirconium. Magnesium alloys have a hexagonal lattice structure, which affects the fundamental properties of these alloys. Plastic deformation of the hexagonal lattice ...
The Libre, sometimes known as the "daisy" wheel, was a 4-lug, 4-spoke wheel popular with sports car racers, often seen on MGBs and Datsun 510s. Each spoke appeared to bulge slightly in the middle, giving the wheel a robust appearance. These were cast in magnesium for racing and in aluminum alloy for street use.
Interior (959 Komfort) The powerplant is a sequential twin-turbocharged DOHC flat-six engine equipped with 4 valves per cylinder, fuel fed by Bosch Motronic 2.1 fuel injection with air-cooled cylinders and water-cooled heads, with a bore x stroke of 95 mm × 67 mm (3.74 in × 2.64 in) for a total displacement of 2,849 cc (173.9 cu in). It was ...
In 1993, BBS merged the gap between their three-piece forged wheel and one-piece cast wheel with the two-piece design found in the RSII, defining BBS as a pioneer in one-, two-, and three-piece wheels. BBS developed a magnesium forged wheel in 1994 for motorsports use, especially in Formula One, which was over 20% lighter than the standard cast ...
Halibrand. Halibrand is an American maker of racing wheels and quick-change rearend housings. [2] Halibrand started in Culver City, California in 1946. Its first product was a magnesium wheel for Indy cars, as a replacement for the wire wheels then commonplace. The slotted design favored by hot rodders is based on a sprint car design from the ...