The Universal 185R15 shows a diameter of 26.5" (don't know the rim width
used) and most 165R15 have a diameter of 25.4" for a radius difference of
0.55". It'll give one an additional clearance of 1/2" and might rub the
inner front fender a little at full turn.
I would be interest to hear from anyone using the 185R15 (80 aspect ratio)
tires on their six cylinder Austin Healeys if they have any clearance
problems or significant rubbing, or any other down sides to the larger tire.
Vrooom vrooom,
John
healey> ----- Original Message -----
> From: "Eric (Rick) Wilkins" <e-wilkins@cox.net>
> To: "Healey List" <healeys@autox.team.net>
> Sent: Wednesday, July 08, 2009 4:52 PM
> Subject: Re: [Healeys] 'New' 185R15 tire choice available...
>
>
>> That website doesn't give a lot of real specs on that 185/80 tire, but
>> that 80 means 80% of 185. 80% of 165 is a whole different animal.
>>
>> Basic math gives a diameter of damn near 26.7 inches for a 185/80 tire.
>>
>> Factory manuals for the Austin Healey list 25.39 as the standard
>> diameter.
>>
>> Wilko
>> San Diego
>>
>> On Jul 8, 2009, at 4:31 PM, Greg Lemon wrote:
>>
>>> Actually 80 profile is pretty close to "standard" a 165/80 as we have
>>> had available is pretty close in dimension to the original equipment
>>> bias plys fitted to early cars, I would think the 185/80 would
>>> certainly fill the wheel wells up much better than the 185/70 that has
>>> been popular (though now is hard to find) on big Healeys. I think a
>>> "standard"" aspect ratio may be more like 82%, but at 80 you are
>>> certainly pretty close.
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