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Date:         Wed, 22 May 2013 18:33:27 +0000
Reply-To:     Todd Last <rubatoguy@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Todd Last <rubatoguy@COMCAST.NET>
Subject:      Re: 14" to 16" Wheel Upgrade User Input Please.
Comments: To: mark drillock <mdrillock@COX.NET>
In-Reply-To:  <519CFCF1.4040902@cox.net>
Content-Type: text/plain; charset=utf-8

Could someone explain the physics of why a larger wheel would affect braking?

Is this simply because of a change in the contact patch of the tire?

Todd

'88 Westy

----- Original Message -----

From: "mark drillock" <mdrillock@COX.NET> To: vanagon@GERRY.VANAGON.COM Sent: Wednesday, May 22, 2013 10:14:25 AM Subject: Re: 14" to 16" Wheel Upgrade User Input Please.

Obviously larger diameter tires affect the braking somewhat. I have 5 vans with 15" and 16" tires that are all substantially larger than stock diameter and yet I have all stock brakes. The key thing is they are all 86+ front brakes and I keep the full braking systems in good working order. GOOD WORKING ORDER, that is the key. The rears are very important in that regard, they need service.

I did recently put a larger brake booster in one of them and that made a big difference in brake feel though it doesn't improve braking capacity.

Mark

Don Hanson wrote: > Semi-thread jack, but > >     what kind of effect have you wheel swappers felt on braking?   Seems to > me that increasing the diameter and rolling circumference of the wheels > without increasing the brake's size...that would result in noticeable > reduction in actual braking force...eh?   I know the effect is dramatic > when done the other way....increase the brake disc's diameter and the > braking forces are enhanced... >    Curious, because Vanagons are  somewhat under equipped with brakes from > the factory > > >


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