Wheel Code... J and JJ ???

[KiLLeR2001]

Quick question guys. I was just wondering what the single "J" and the double "JJ" meant in terms of wheel sizing.

For example, 17 x 7.5J compared to 17 x 7.5JJ.

Thanks in advance.

[firelizard]

Tire bead profile and wheel contour.
http://www.carbibles.com/tyre_bible_pg2.html

I reckon any difference it makes will be negligible in terms of sizing.

[KiLLeR2001]

Tire bead profile and wheel contour.
http://www.carbibles.com/tyre_bible_pg2.html

I reckon any difference it makes will be negligible in terms of sizing.

Perfect. Thank you! +rep