# Tire Size

Peter Golledge petergolledge at gmail.com
Sat Feb 14 18:01:40 PST 2015

```I'd put 4 people in the car go over a few bumps/dips, no scraping and you
are good to go.  I've typically run taller/thinner snows on the Type 44
chassis with no issues...

On Sat, Feb 14, 2015 at 3:38 PM, Grant Lenahan <glenahan at vfemail.net> wrote:

> The tire is 0.85” bigger and slightly wider…. that’s how much you need,
> plus clearance for movement
>
> How long must a mans legs be?
>
> Grant
> On Feb 14, 2015, at 5:37 PM, Vincent Gelinas <vrgelinas at gmail.com> wrote:
>
> > It seems I have a bit of space left. How much do I need or should I have?
> >
> > V
> >
> > Sent from my iPhone
> >
> >> On Feb 14, 2015, at 17:36, Grant Lenahan <glenahan at vfemail.net> wrote:
> >>
> >> If you take a good look at the space between the tire and the upright,
> on a loaded wheel, you can gauge how much clearance you will have.
> >>
> >> Grant
> >>> On Feb 14, 2015, at 5:20 PM, Vincent Gelinas <vrgelinas at gmail.com>
> wrote:
> >>>
> >>> Thanks for correcting my math. I should have known that it was just a
> radius difference and not diameter. It's been a while since my last math
> course.
> >>>
> >>> I suppose the worst that can happen is that they don't fit and I sell
> them and buy the right size.
> >>>
> >>> Thanks,
> >>>
> >>> V
> >>>
> >>> Sent from my iPhone
> >>>
> >>>> On Feb 14, 2015, at 17:11, Grant Lenahan <glenahan at vfemail.net>
> wrote:
> >>>>
> >>>> According to my math the diameter difference is 1.7” and therefore
> the radius delta is -+0.85” - a LOT. This also translates into a 9% gearing
> difference, also a LOT. I can’t say if it will fit, but its very, very big.
> >>>>
> >>>> I run 225/55-16 winters (=2.8%, ~ +.25”R) out of choice, and they
> look, well, full.
> >>>>
> >>>> To gt the delta you need to, for the radius, multiply the width
> delta by the section % (215 x .65 - 215 x .55) = 215 x .1 = 21.5mm
> increased sidewall - and that is not he top and bottom (only one
> interferes, but it also increases ride height by nearly an inch.
> >>>>
> >>>> Yuk.
> >>>>
> >>>> Grant
> >>>>> On Feb 14, 2015, at 4:59 PM, Vincent Gelinas <vrgelinas at gmail.com>
> wrote:
> >>>>>
> >>>>> Hi, all.
> >>>>>
> >>>>> To update, it seems like I had a bad tire. I put the spare on and it
> all went away. I need four new tires now and I got them for free (almost
> new Goodyear Extra Grip Ice) but they're 215/65/16 instead of 215/55/16.
> That's less than an inch difference in  diameter if my math is right (10%
> of 215 mm is 21.5mm... 21.5mm is around 0.84 inches).
> >>>>>
> >>>>> I know this will cause my speedometer and odometer to read a little
> slow, but I'm wondering if it will fit under a stock suspension on a 2004
> A6qA. C5 chassis. My research points to yes, but I would like the group's
> opinion.
> >>>>>
> >>>>> I would get the correct size, but beggars can't be choosers.
> >>>>>
> >>>>>
> >>>>> Vinney
> >>>>>
> >>>>> Sent from my iPhone
> >>>>> _______________________________________________
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> >>
> >
>
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```