Some of the things we know and love about hot rodding started as speed secrets for racers. Things like louvers, chopped tops and dropped axles started as modifications performed by racers to improve performance. Drag racing, stock car racing and salt flat racing contributed lots of tricks to the hot rod trade, but one of the most iconic and simple tricks was a slick hubcap to cover steel wheels. Moon wasn’t necessarily the first to fabricate a “disc” wheel cover, but it was the first to offer it to a massive audience. Racers had been toying with disc caps for many years prior to the introduction of what we now consider the “Moon Disc”. When Moon introduced these caps in the ’50s, you could give your hot rod or custom the go-fast look for much less money than buying a whole new set of wheels. They were originally screw-on caps, which attached with sheet metal screws. Later on, Moon came out with the snap on version of its iconic cap, which was a little easier to install. Honest Charley is a full line distributor for Moon products, and offers these Moon Disc hubcaps in both Screw-On (available in 14, 15 and 16 inch diameters) and Snap-On configurations (available in 14 and 15 inch diameters). Click here to see the variety!