How tall is a 255/50/16 tire? I know the 255 is the width of the tire in mm. I just dont know how the 2nd number fits in. Is there a formula to tell how tall the tire is. If not can someone also tell me how tall a 245/45/16 is? I tried searching but i have had no luck. thanks guys.
adam

 

There's info everywhere about this....

Look on Tire Rack under Tire Tech.

 

50 means half of the width. So it would be about 127.5mm.

 

255/50/16

sidewall = 127.5mm x2 (because there is sidewall on either side of the wheel)

so

255mm = ~11in

so

11in + 16in = 27 inches tall, from top of tire to bottom of tire. give or take a couple of metric->imperial fuckups.

edit: corrected a known metric->imperial fuckup

 

I get 26.04" nominal.
I just put up a tire chart here...
http://fc3spro.com/TECH/MODS/RT/tires.htm


-Ted

 

the first # is the width in mm. then the 2nd # is % of the width is the sidewall. and the last # is the rim size in inches. example 255/50/16 width is 255 sidewall is 50% of 255 and 16 inches is the rim size