[6pack] Tire Selection for 205/70/15

Robert Lang lang at isis.mit.edu
Wed Jun 24 11:44:06 MDT 2009


On Wed, 24 Jun 2009, shawn loseke wrote:

> Actualy a 195/65 is a smaller rolling diameter then the original. The
> original 185R15's had a sidewall closer to an 80 series so you have to
> plug in 185/80R15 into the tire size calculator. If you assume the
> sidewall to be a 70 series (185/70R15) then a 195/65R15 is closer.

Keep in mind another important factor... most tires are molded with tread 
depths in the 9/32 to 10/32" range. This adds about .5 inches to the 
height of a brand-new tire. Half and inch to 25 inches is 4 or 5 percent, 
but a worn down tire of stock size will be very close in diameter to the 
alternate "modern profiles" available (like 205/70-15.)

> Shawn

regards,
rml

p.s. I like the "look" of my 23x9x15 sliX - =:-0
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