[Shotimes] tire sizes

[bjshov8@comcast.net]

Theoretically you will be going 3 mph slower with the speedo indicating 60 mph, but different manufacturers specs will vary slightly.

BTW, I didn't think 215-60 was a stock size, or maybe that's just because I drove a 90 with 15" wheels.
> can anyone tell me how far off my speedometer will be if i go from the stock
> 215-60-16's to a 225-50-16?i'm figuring about 5 mph at 60 mph.i know there is
> a formula,but i can't find it anywhere.thanks in advance,BOB FISHER