tyre choice for series IIa ?

[mikeh1975]

hi just another quick question?

i have some bronco`s 285/75/16, there about knackerd and splitting just after a year! money not well spent :-( , im looking at buying a set thats 33.12.50.16, it this the same or equivilent size to what i have at the moment or will they be slightly larger?

mike :(blackeye):

[Bob Ajob]

Hi Mike,

I would normally post a good internet site, though just rebuilt my PC (diff story) and not re-imported my bookmarks yet.

Here it is manually:
With an aspect ratio of 75% of the width (285):

75% of 285mm is 213.75.
213.75 x 2 = 427.5

For "427.5 in inches", Google says 427.5 millimeters = 16.8307087 inches
On a 16" rim, 16 + 16.8 = almost 33" (1/4" short)

It's just a touch under 33", same equivalent size basically.
Though I bet if you measure the diameter of the 33 tyes, they're not exact anyway.

[lrmike]

Great tire size calculator:

http://www.miata.net/garage/tirecalc.html