Ste
Premium Member
Registered: 5th Mar 03
Location: Taif, Saudi Arabia
User status: Offline
|
The "J" code makes up the "Rim Contour" and specifies rim contour dimensions. It indicates the physical shape of the wheel where the tyre bead meets it.
This area of rim-to-tyre interface is very critical. Very small changes in a tyre's bead profile make large differences in mounting pressures and rim slip.
In short, it doesn't have anything to do with the width of the wheel.
You can get J, JJ, K, JK, B, P and D profile rims 
I would rather lose by a mile because i built my own car, than win by an inch because someone else built it for me.
|