Wheel size

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1066 Boy
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Wheel size

Post by 1066 Boy » Sat Feb 21, 2015 5:47 pm

Hi all. Sorry if this has been covered before but i am a bit confused. :er:

I have had a look at the tyre size thread. Its very good by the way. :D
The problem i have is on the chart rim size is mention in inches for the width.
When i look at wheel sizes, the width is quoted in " j" :S

Is 7j the same as 7" or is the a chart to show whats what :?:

Sorry if i am being a bit thick, just dont want to make an expensive mistake.
Thanks in advance Allan (1066 Boy)
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Rhinoman
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Re: Wheel size

Post by Rhinoman » Sat Feb 21, 2015 8:20 pm

J = inches
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Anton
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Re: Wheel size

Post by Anton » Sat Feb 21, 2015 9:49 pm

I think "jj" means "inches plus a half" - so 7J is 7 inch, 7JJ would be 7.5 inch, 8J is 8 inch, 8JJ is 8.5 inch. I *think*.
1985 SJ413VX (SJ50V) with SPOA, rear disc brakes, 31x10.5R15 Kaiman Malatesta tyres, an MOT and a lot left to do!

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ScottieJ
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Re: Wheel size

Post by ScottieJ » Sat Feb 21, 2015 9:52 pm

7 is the width, J is the bead profile

http://www.carbibles.com/tyre_bible_pg4 ... imcontours
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Anton
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Re: Wheel size

Post by Anton » Sat Feb 21, 2015 9:57 pm

Yeah, I was just goggling that, and apparently J and JJ are slightly different rim lip types. Nice link, Scottie, very informative!
1985 SJ413VX (SJ50V) with SPOA, rear disc brakes, 31x10.5R15 Kaiman Malatesta tyres, an MOT and a lot left to do!

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1066 Boy
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Re: Wheel size

Post by 1066 Boy » Sun Feb 22, 2015 7:29 am

Thanks guys. Love the link Scottiej :doublethumbs:
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