[Spridgets] No real difference in tires

Guy Weller guy.weller at tiscali.co.uk
Thu Jan 10 04:07:19 MST 2008


Another angle on this is that the taller sidewall tyres - that is the 80
aspect ration tyres -  will deform more on cornering  and will also
generally have a greater rolling resistance. This reduces acceleration,
increases fuel consumption and gives poorer handling on twisty roads.
Generally all bad points.  They do, however give a slightly softer ride.

Guy
-----Original Message-----
From: spridgets-bounces+guy.weller=tiscali.co.uk at autox.team.net
[mailto:spridgets-bounces+guy.weller=tiscali.co.uk at autox.team.net]On Behalf
Of Frank Clarici
Sent: 10 January 2008 03:16
To: Spridgets
Subject: [Spridgets] No real difference in tires

Specification  Sidewall  Radius  Diameter  Circumference  Revs/Mile

155/80-13      4.9in     11.4in    22.8in   71.5in        886
175/70-13      4.8in     11.3in    22.6in   71.1in        891

This is from a chart/calculator a lister sent me to check tire sizes.
Seems to me the 175/70s are a tad thinner and shorter than 155s.
But I do have 175s on the 58 and they sure look wider than 155s.
http://www.miata.net/cgi-bin/tirescgi
--
Frank Clarici
Toms River, NJ
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