Low Rolling Resistance Tires

[Edward Rupp <edwardrupp@netzero.net>]

Hi folks,

I've been searching for info on tires, and haven’t found much comparison
info.  Also checked the list serv archive, didn't find much.  Is there
any web sites that go into detail?

The tires on my RX-7 are looking close to bald.  I just bought Steven
Richardson’s EV pickup, who’s tires are needing replacement.  So I’m
going to be spending a lot on tires and would like to get the best range
performance I can get.

So far the only tire brand that seems to mention having  low rolling
resistance tires is Goodyear.  The Decathlon seams to have the narrowest
tire available that will fit my car.  The RX-7 now has P185/70R13.  The
Decathlon has P165/80R13 and P175/80R13.  The other model line is the
Invicta which has a P185/70R13.

I would think the narrowest tire available would be the most efficient,
however I’m not certain I might be overlooking problems with the
slightly different tire height.  Also I’m not too certain what to do for
tires for the pickup.  It seems the tires for pickup’s don’t have any
great concern for energy efficiency.

Has any one noticed a big difference in range using the “fuel economy
tires”  and what model did you use?

Also researching Air Springs for the pickup.  Has any one used these
critters?  They seem the most versatile way to beef up a suspension.

Would much appreciate some advice.

Edward Rupp
EV addict
Mazda RX-7 EV
Mitsubishi EV PU
Loveland Colorado
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