Fiat Doblo Owner's Handbook Manual - page 185
184
TECHNICAL SPECIFICATIONS
UNDERSTANDING TYRE
MARKING
The following are the necessary in-
dications to understand the meaning
of the markings on the tyre.
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 240 km/h
UNDERSTANDING RIM
MARKINGS
The following are the necessary in-
dications to understand the meaning
of the markings on the rim.
Example: 185/65 R 15 88 T
185 = Nominal width (S, distance
between sidewalls in mm).
65
= Height/width ratio (H/S, as a
percentage).
R
= Radial tyre.
15
= Rim nominal diameter in inch-
es (Ø).
88
= Load rating.
T
= Maximum speed rating.
Example: 5
1
/
2
J x 15 H2
5
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 inch-
es (corresponds to diameter of
the tyre to be mounted) (3 =
Ø)
H2 = “hump” shape and number
(relief on the circumference
holding the tubeless tyre bead
on the rim)
fig. 6
F0A0257b
174-207 Doblo GB 9-05-2008 12:10 Pagina 184