Drag Race Tire Tech: FASTEST Way To Change Your Gear Ratio!

Drag Racing Tires

With a testing session coming up for his ’68 Plymouth BARRACUDA drag race car, JustMoparJoe has recently swapped tires to Drag Slicks with a different diameter.

He offers up a quick and simple formula to calculate your new final Gear ratio (Effective Gear Ratio) when switching tire sizes!