I have found that 175/60R13 works best. I use either 13x5 or 13x5.5 for this
size. The good thing about the 175/60 is that most of the high performance
rubber (including R rated tyres) are available in this size and many of them
fit under the wheel arch of a square arch spridget with minimul "pumping
out"
of the guards.
Mike
-----Original Message-----
From: CONAN@RALVM8.VNET.IBM.COM <CONAN@RALVM8.VNET.IBM.COM>
To: spridgets@autox.team.net <spridgets@autox.team.net>
Date: Thursday, April 02, 1998 1:49 PM
Subject: re: Tire size
>>> Funny thing
>>>- it actually cornered better with the 145s but the ride is much softer
>>>with the bigger tires.
>>>
>>>Les
>
> Hi Les,
> This is because you squeezed 185mm(nominal) section width tires
onto -real-
>skinny wheels. 185mm is about 7-1/4". How wide are your rims? 3-1/2"? 4"?
>Even the late style Midget wheels were only 4-1/2".
> A 185 section tire needs a minimum of 5" rim width (measured -between-
the
>mounting flanges). 5-1/2" to 6" is better.
> Putting a wide tire on a skinny rim puts a lot of bulge in the sidewall
of
>the tire, which wobbles and flexes back and forth as you corner. Probably
>was pretty unstable even in a straight line.
> Running normal air pressure in that kinda combination would also tend to
>result in noticeably more wear in the center of the tread than the edges
too,
>as the bulging sidewalls flex and allow the tire to turn into a round,
balloon
>tire shape.
> If you run lower air pressure to compensate for this you soften the
sidewall
>even more, allowing even more flex and wobble as you drive.
> A 165 section width tire (as in the 165/70) calculates to about 6-1/2".
I
>don't think I'd want to put this on anything narrower than 4" minimum, and
>4-1/2 to 5" would be better.
> Ed in NC
>
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