Lancia Lybra Owner's Handbook Manual page 265

UNDERSTANDING
RIM MARKING (fig. 5)
The following are the necessary in-
dications to understand the meaning
of the markings on the rim.
264
Example:
6 1/2 J x 15 H2
6 1/2 = rim width in inches (1).
J = rim drop centre outline (side
projection where the tyre
bead rests (2).
15 = rim nominal diameter in
inches (corresponds to diam-
eter of the tyre to be mounted
(3 = ∅).
H2 = "hump" shape and number
(relief on the circumference
holding the tubeless tyre ead
on te rim).
fig. 5