Question about wheels

Simon

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What's the J for, as in J6.5 or J7, is it the width, is a J7 5mm wider than a J6.5?

I'm not sure what my steel rims are, but have seen some J7's and are hoping they fit.

Cheers.
 

Guy

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Originally posted by Black180
What's the J for, as in J6.5 or J7, is it the width, is a J7 5mm wider than a J6.5?

I'm not sure what my steel rims are, but have seen some J7's and are hoping they fit.

Cheers.
Simon,

I think the J is a designation of the shape of the wheel/tyre interface. You can ignore it for all practical purposes.

Rims are always measured in inches - so

6.5 x 16 = 6.5" wide x 16" diameter
7.0 x 16 = 7.0" wide x 16" diameter

HTH :D
 

Steve_Perry

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Re: Re: Question about wheels

Originally posted by Guy
Rims are always measured in inches -

Which begs the question... who decided that the standard unit for tyre width is mm??? i.e. my tyres are 205 mm wide 55mm profile and 16" diameter.

:rolleyes: :p

Answers on a postcard to....

S.
 
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Simon

Simon

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I thang you.

Hope I get them because those shown below aren't real;)

GTG soon.........Neeeeeeeeed wheels..............Don't panic:crazy:
 

GrahamC230K

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Re: Re: Re: Question about wheels

Originally posted by Steve_Perry
Which begs the question... who decided that the standard unit for tyre width is mm??? i.e. my tyres are 205 mm wide 55mm profile and 16" diameter.


S.

Are you sure?

The tyre width (205, 225 etc) is measured in mm, but the sidewall size is a percentage of the width, so surely it is a variable ratio, not directly measured in mm also?
 
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Steve_Perry

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Oops my wrong, I meant width e.g. 205, 225, 245 etc.

*blush*

S.
 

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