David,
The 195/70*13 Tyres fit fine on a standard PI rim and clear everything.
As far as stresses are concerned, I would say all modern tyres are offering
better grip and hence greater stresses
in the suspension. The tie rod strengthening is always a good idea but
overall the suspension would appear to be
comfortably strong enough for road use with bigger tyres (judging by it's
strength in competition).
I suppose the problem with both 185HR *13 and 195/70HR*13 tyres will be
their relative expense due to low sales volume.
cheers Andy T
> -----Original Message-----
> From: David Hill [SMTP:davhill@cwcom.net]
> Sent: Tuesday, 29 June 1999 3:25
> To: Andrew Thompson
> Cc: jonmac; 2000-Register (E-mail)
> Subject: Re: PI Tyres
>
>
>
> Hi John, Andy et al,
>
> I'm currently using a pair or ageing 185 x 13 tyres on the bakc of my
> PI, with 185/70 x 13 on the front. This makes the front arches look
> under-occupied and all the tyres are getting old.
>
> Does anyone know if 195/70 x 13 s give adequate clearance for
> suspension, brake lines and arches? Also, any thoughts about the
> stresses input into the supension/bearings etc. by the larger tyre
> footprint? I'm thinking particularly about the front leading arms, which
> really should be reinforced, especially on cars with anti-roll bars.
>
> Dave Hill
> Andrew Thompson wrote:
> >
> > Jon, Just a suggestion........
> >
> > Why don't you try swapping the Stag Alloys for a set of steel Stag
> Wheels
> > Surely someone can help in the UK ( ie Stag owner without Alloys).
> > >From memory the 185 HR x 13 Tyres were very thin on the ground 4 years
> ago
> > and normally expensive and in lot's of one or two at autojumbles. (often
> > Michelin XAS )
> >
> > or........................
> >
> > Jimmy Elliot of Classic and SportsCar Fame uses 195/70 *13 on his PI.
> These
> > are
> > Firestones and were available a couple of years ago. They are HR rated
> but
> > are approx
> > 3-4% smaller in diameter (175*13 size).
> >
> > They seemed like a good compromise for the higher potential performance
> of
> > the PI if you
> > want to stay 13"
> >
> > Cheers Andy T
> >
>
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