Date: Mon, 1 Nov 2004 22:47:28 -0800
Reply-To: "Todd P. Last" <Rubatoguy@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "Todd P. Last" <Rubatoguy@COMCAST.NET>
Subject: Re: Largest diameter wheel.
In-Reply-To: <418683FC.4070305@mchsi.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
My experience was that I had to have the tire store call Michelin, AND
point out that it is on their commercial truck tire list.
It is not a tire that even Michelin seems all too familiar with.
Load rating is at max pressure, and as you reduce pressure, the load
rating reduces proportionally.
The downside in the larger diameter is slower acceleration - but it will
also reduce your freeway RPMs slightly.
I believe it worked out to about 10% in my case.
I'd be curious to know if any of the tires you saw that had carcass/belt
failures were appropriately rated for Vanagon.
I've seen a number of tire failures from people who were adventurous to
put car tires that did not meet the load rating on the Vanagon.
Todd
'88 Westy
Al and Sue Brase wrote:
> Are these Michelin XCA 205/75r-14's even still available? tire Rack
> doesn't show them, I don't think.
> Is there any big reason to not use this size? I realize they are a 1/2"
> bigger in diameter. The load rating on many tires in this size as
> 120-150lb. more per tire than either 205/70 or 185/80. Is there a down
> side?
> Also, many of these tires are rated anywhere from 36 to 60 psi maximum
> air pressure? Are the load ratings AT the max inflation pressure? If
> that is the case, would the 36psi tire at 36psi actually carry more
> than the XCA or Yoko 356 at 55psi?
> Has anyone seen Avon "Van" tires for sale anywhere? Of the 30 or so
> mounted Vanagon tires I have here at home they are the only set that has
> experienced NOT ONE carcass/ belt failure! Yeah, yeah, I know I
> shouldn't put 3000 lb. in my Vanagon, but sometimes...... At lest it's
> just the diesel, so no one can accuse me of being overloaded AND
> speeding!
> Al Brase
>
> jimt wrote:
>
>> On 10/31/04 7:55 PM, "John Rodgers" <inua@charter.net> wrote:
>>
>>
>>
>>> Here are the ply numbers for the XCA as read off the tire itself
>>> tonight.
>>>
>>> Tread: Two plys of polyester, 3 plys of steel
>>>
>>> Sidewall: Two plys of polyester
>>>
>>> Pressure: 65 psi.
>>>
>>>
>> Look at the small numbers next to the rim for "ply rating" If it is
>> on the
>> tire. It will actually say "6 ply rated" or similar if it is there.
>> This
>> is an archaic rating that is not denoted by most mfr anymore. For
>> instance
>> my vredestiens read the same 2 and 3 but are rated a 6 ply load range
>> c/d.
>> The ply term dates back to rayon plys. Tire was rated by equivalents of
>> those plys. Very few tires carry that rating on them anymore.
>>
>> Below is from (Universal Tire Quality Grade) standards
>> UTQG
>> Ply Rating vs. Load Range
>> Ply ratings and load ranges identify load and inflation limits of a
>> given
>> tire size when used in a specific type of service.
>>
>> * Ply ratings: An older method of rating load capacity, these are
>> listed
>> as 4-ply, 6-ply, 8-ply, etc.
>> * Load ratings: The current method of rating a tire's load-carrying
>> capacity is denoted by letters (B, C, D, E, etc.).
>>
>>
>> The yokohama site has this and more info
>> http://www.yokohamatire.com/ututqg.asp
>>
>> ........................................
>> jimt
>> Planned insanity is best.
>> Remember that sanity is optional.
>> http://www.tactical-bus.info (tech info)
>> http://www.westydriver.com
>>
>>
>>
>
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