Miata Mailing List: June 1994, Message #173
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   From: kenw@netaxs.com (Ken Warren)
Subject: Re: sticky tires
   Date: Wed, 8 Jun 1994 15:52:48 -0400

At 09:56 AM 6/8/94 -0400, Doug Hagerman wrote:
>Thanks for all the info on tires. Summary seems to be that the two
>sticky DOT tires are the BFG Comp T/A R1 (road race compound 230) and
>the Yokohama A008RS or RS II, the RS II being the autocross version,
>even stickier and shorter lived. Both available in 195/55VR14 or stock size.

I can't really recommend that you get an autocross tire; they're just too 
delicate for daily use. Plus, they'll wear out so fast you'll think they're 
melting away while the car's parked! :)

>One other question: Why do these tires "minimize the effect of caster"?
>Is it because of the stiff sidewalls or the tread compound? I would
>expect that if it's the sidewalls then 15" wheels would show this
>effect even more, but I've never heard it mentioned.

I don't know about the Yokes, but on the BFGs, the inner sidewall is a lot 
stiffer than the outer sidewall. This affects the steering as noted. The 
Yokes are most likely the same way.

--
Ken
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           Ken Warren               E-Mail: kenw@netaxs.com
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Finger me for the current Philadelphia Region SCCA Solo II schedule...