mag wheel

noun

, Automotive.

1. a wheel containing magnesium or aluminum generally alloyed with steel, which makes it lighter in weight and shinier than an ordinary steel wheel: used especially on racing cars and sports cars.

Word History and Origins

Origin of mag wheel¹

1965–70; mag, by shortening of magnesium

Example Sentences

The brake bands were not seated...All four wheel cylinders for the brakes were leaking and it appears that some fluid other than the normal brake fluid was used...A pinhole leak was found in the 'Mag' wheel,-which should have been detected during the mounting.

From Time Magazine Archive