Speed equation

[Mark J Bradakis <mjb@autox.team.net>]

For those of you who wondered:


                     Tire Diameter (in) x RPM x 188.5
Speed (mph) =   -------------------------------------------
                 final drive ratio x gearbox ratio x 63360

I just have this spreadsheet I wrote up years ago where you plug in a few
bits of info and you get the chart of speeds in the various gears.  I haven't
actually sat down with a calculator and the equation for quite some time.

mjb.