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Maximum speed index
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 = over 210 km/h
ZR = over 240 km/h
W = up to 270 km/h
Y = up to 300 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.
224
UNDERSTANDING RIM
MARKINGS
The following are the necessary in-
structions to understand the meaning
of the markings on the rim, as shown
in fig. 6.
1
Example: 6
/
J x 15 H2 ET43
2
1
6
/
= rim width in inches 1-fig. 6;
2
J = rim drop centre outline (side
projection where the tyre bead rests)
2-fig. 6;
15 = rim nominal diameter in inches
(corresponds to diameter of the tyre
to be mounted) 3-fig. 6;
H2 = "hump" shape and number (re-
lief on the circumference holding the
Tubeless tyre bead on the rim);
ET43 = wheel camber angle (dis-
tance between the disc/rim support-
ing plane and the wheel rim centre
line).
fig. 6
F0B0267b
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