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Author: Subject:  rolling diameter
Memberbigdood2
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posted on October 22nd, 2009 at 06:31 PM
rolling diameter


Hi All,
Does anyone know the correct rolling diameter for tyres that will keep the speedo accurate on a 75 bug.It has got 14'' hotwire rims with 195/75 tyres which are not all that common when it comes time for replacement.
Looking at the manual it is supposed to have 6.00 x 15 4 PR,what does this equate to in todays world?
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posted on October 23rd, 2009 at 10:40 AM



Hmm... pretty sure the original tyres (either 155 or 165) came out to something like 637mm OD.

Hopefully CT (fullnoise) will jump in - he's pretty much the guru on all things tyres !!!




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posted on October 23rd, 2009 at 07:28 PM



165/80 kumho powerstar or michelins were the token bug tyres up till recently

i havent run stock rims for ages so i dunno what people are running these days as there pretty hard to come by 8 years ago when i tried looking


Daves right stock diameter is 645mm
u wont get near that with 14" tires
a mates Sbug has hotwires with 205/65 on which is close but it rubs like a mofo
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posted on October 24th, 2009 at 07:33 AM



http://www.1010tires.com/TireSizeCalculator.asp 


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