Submitted: Sunday, Aug 08, 2004 at 15:59
ThreadID: 15394 Views:2059 Replies:2 FollowUps:2
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I have original alloy wheels with the size marked in the casting 15 x 6.5 x JJ
which takes a 235 x 75 x 15 tyre.
I know that 15 is the diameter and 6.5 is width but what Does the JJ stand for?

I am guessing it is to do with the off set and the 6 stud pattern.

If I was looking for a tyre at 31"x10.5"x15" what width of wheel should I be looking for and with what offset in order to make the width only get larger to the outside of the vehicle?

Hope you get my drift.
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Reply By: Member - Slim - Sunday, Aug 08, 2004 at 16:28

Sunday, Aug 08, 2004 at 16:28

When I was recently looking for wheels I was told by "the man" that JJ refers to the internal profile of the rim in relation to the way the tyre sits or is placed against the internal edge of the rim. Take that for what it's worth as I have never asked the question of anyone else.


AnswerID: 71750

Follow Up By: mr diamond - Monday, Aug 09, 2004 at 13:23

Monday, Aug 09, 2004 at 13:23
spot on slim.
the j or jj is the measurement where the bead of the tyre rests against the rim.
FollowupID: 332028

Reply By: Utemad - Sunday, Aug 08, 2004 at 18:40

Sunday, Aug 08, 2004 at 18:40
15x7 for the rim size. Don't know how or where the offset is measured from so can't answer that bit.

AnswerID: 71767

Follow Up By: ROGER G - Monday, Aug 30, 2004 at 20:08

Monday, Aug 30, 2004 at 20:08
Just a late follow up with another Question.

I have feeling that the 6 1/2 in the wheel casting does not signify the wheel width but possibly the amount of offset.Would this be correct?

As I measure the outside wheel width to be appox 8" bearing in mind that the original tyre is a 235 75x15.

The wheels are on my '99 Holden Frontera.

I have read Nige's posting dated 28/08/04 id 15895
FollowupID: 334454

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