Ron,
According to the chart I referenced in "message 23", your tire has a
section width of 7.2", a diameter of 24.57", and a tread width of
5.1". The original 175SR13s' had a section width of 7.0", a diameter
of 23.94", and a tread width of 5.0". So your tire is wider, taller,
and has a little more tread width.
I just ordered some "H" rated 195/70R13s' that have a section width
of 7.9", a diameter of 24.10", and a tread width of 6.1". So they
are taller than the original, wider by almost an inch and the tread
is an inch wider. Don't have them yet but will let the list know how
they fit.
When I bought my car in June, it had 205/70HR13s' on the rear and
175SR13s' on the front. With that difference the car is level but I
bottom out relatively easily (not fun).
I will take your advice on the tubes. My Jensen-Healey had "leakey"
wheels also. www.rogerkrausracing.com site also has tube fitment
charts.
Your car looks great! Hope to see it in the "flesh" some day.
Don Lattimer
1971 Marcos 3 litre V6 #3M5759
Willits, CA
--- In MarcosManiacs@y..., Ronald McLeod <ronald.mcleod@a...> wrote:
> Maniacs . . .
>
> Someone was asking about tires a little while ago. As you can see
from the
> picture on the website, my Mantis has the 13 inch Marcos alloys. I
am
> currently using Bridgestone SF-402's P185/80R13. This is an all-
season
> tire, so not the sexiest rubber one can get, but the 80 aspect
ratio gives
> me some much-appreciated ground clearance. The tires seem to do
all that I
> ask of them, which may mean that my driving is not aggressive
enough. I
> don't know what others experience has been, but I have to use tubes
with the
Show quoted textHide quoted text
> tires, as the Marcos alloys have been very 'leaky' from day one.
>
> Regards . . . Ron McLeod