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Date:         Tue, 8 Mar 2011 12:53:33 -0800
Reply-To:     Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Subject:      Re: And now - still trying for NEW TIRES
Comments: To: Mike S <mikes@flatsurface.com>
In-Reply-To:  <20110308203824.B6073A007E@locke.alientech.net>
Content-Type: text/plain; charset=ISO-8859-1

Chicken Little's not so good with math, I guess. ;)

My 255/55-16 Continental EWC winters are XL ie 99T: 1709 lbs and 118 mph - I think I'm pretty safe!

On Tue, Mar 8, 2011 at 12:38 PM, Mike S <mikes@flatsurface.com> wrote:

> At 11:24 AM 3/8/2011, The Bus Depot wrote... > > For your own safety and education, please take a moment to read this >> primer >> on safe tire choices for Vanagons before making any tire purchase: >> >> http://busdepot.com/details/tires.jsp >> > > That's only correct for Synchros. > > Your site claims: "based on the GAWR (Gross Axle Weight Rating) of a > Bus or Vanagon you get the following minimum acceptable load ratings: > 1520 lbs (load index 95) for a light truck rated tire, or 1670 lbs > (load index 99) for a standard Passenger car (P) rated tire," which > implies a GAWR of 3040. You offer no source for "the 6% safety margin" > you say is required in addition to the 9% derating for a passenger tire > used in a light truck application. There's no mention of the additional > 6% here: http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=70 > > A light truck tire rated for 1520 (1/2 the Synchro rear GAWR) would be > load index 95. A passenger car tire rated for 1672 after derating 9% is > load index 99, which agrees with the load indices given on the busdepot > site. Interestingly, if a passenger tire had to be derated 9%, then an > additional 6%, as claimed, one would require a passenger tire rated for > 1914 lbs, or load index 103. So, the busdepot site doesn't even follow > the rules it claims to use. > > But, a 2WD has a rear GAWR of only 2866, so tires need not be rated to > the same capacity. As I said in previous posts, tires suitable for > normal Vanagon must be rated 93 (if light truck) or 96 (if passenger) > or better. >

-- Jake

1984 Vanagon GL 1.9 WBX - 'The Grey Van' 1986 Westy Weekender/2.5 SOHC Subie - 'Dixie'

Crescent Beach, BC

www.thebassspa.com www.crescentbeachguitar.com http://subyjake.googlepages.com/mydixiedarlin%27


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