tire sizes for mugen nr's?!

[los_creeper]

hopefully all you peeps out there with these wheels will find your way to this thread... i ordered a set a few weeks back, and first of all wanted to know what each of the sets of numbers in a tire size actually indicate about the tire i know the last one is the wheel size and i know one of the other signifies the height of the tread wall, but i don't know what would mean shorter or taller... so, i was looking for a set that wouldn't make a big pinch, or really any pinch at all for that matter, but i'm not sure wether or not i will be picky about the tread wall height. i think i would naturally lean towards a smaller profile... ?! any help, advice, suggestions, photos?

[dagul]

195/55/15

1st number is the tread width in millimeters.

2nd number is the ratio of sidewall height. ie, the sidewall height of a 195/55/15 is 107.25mm or 55% of 195mm.

3rd is obviously the diameter rim the the tire will fit on.