In a message dated 96-04-05 07:33:44 EDT, jonr@empire.net (Jon Hathaway)
writes:

>	Tire Size		overall Dia	Rev per mile	
>
>	185/70R-14		24.4"		851
>	
>	185/75R-14		25.0"		832
>
>	185R-14			25.7"		807
>	185R-14 (C)6 ply	25.7"		808 1520-lbs@ 50psi
>	184R-14 (D)8 ply	25.7		809 1765-lbs@ 65psi
>
>	195/75R-14		25.5		814
>	195/75R-14LT		25.8		808 1565-lbs@ 65psi
>
>	205/70R-14		25.6		815
>
>	27x8.50R-14LT		26.5		784 1515-lbs@ 50psi
>
>Bug	165R-15			25.5		814
>
<SNIP>
>	This information was taken from a Yokohama Tire guide... other 
>Brands may vary( but only slightly)...	
>	

It's been my experience with the tires that I've measured that the variances
can be more than slight.  Don't assume that any two tires marked with the
same size, actually ARE the same size.

Jim Davis
87 GL Syncro
88 GL Wolfsburg