FIAT 600 User Manual
Page 130
129
TECHNICAL SPECIFICATIONS
Example: 5 1/2 B x 13 H2
5 1/2 = rim width in inches (1)
B
= rim drop centre outline
(side projection where the
tyre bead rests) (2)
13
= rim nominal diameter in
inches (corresponds to di-
ameter of the tyre to be
mounted) (3 = Ø)
H2
= “hump” shape and number
(relief on the circumfer-
ence holding the tubeless
tyre bead on the rim)
UNDERSTANDING RIM
MARKINGS
The following are the necessary in-
dications to understand the meaning
of the markings on the rim.
Maximum speed rating
Q
= up to 160 km/h.
R
= up to 170 km/h.
S
= up to 180 km/h.
T
= up to 190 km/h.
U
= up to 200 km/h.
H
= up to 210 km/h.
V
= up to 240 km/h.
Maximum speed rating
for snow tyres
Q M+S = up to 160 km/h
T M+S = up to 190 km/h
H M+S = up to 210 km/h
Example: 165/55 R 13 70 H
165 = Nominal width (S, distance
between side walls in mm).
55 = Height/width ratio (H/S, as a
percentage).
R
= Radial tyre.
13 = Rim nominal diameter in
inches (Ø).
70 = Load rating (carrying capacity).
H
= Maximum speed rating.
fig. 5
P3P01062
UNDERSTANDING TYRE
MARKINGS
The following are the necessary in-
dications to understand the meaning
of the markings on the tyre.
124-136 Seicento GB 22-11-2007 10:51 Pagina 129