Fiat Ducato Owner's Handbook Manual page 203

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
QM + S = up to 160 km/h.
TM + S = up to 190 km/h.
HM + S= up to 210 km/h.
202
Load rating (capacity)
70 = 335 kg 81 = 462 kg
71 = 345 kg 82 = 475 kg
72 = 355 kg 83 = 487 kg
73 = 365 kg 84 = 500 kg
74 = 375 kg 85 = 515 kg
75 = 387 kg 86 = 530 kg
76 = 400 kg 87 = 545 kg
77 = 412 kg 88 = 560 kg
78 = 425 kg 89 = 580 kg
79 = 437 kg 90 = 600 kg
80 = 450 kg 91 = 615 kg
UNDERSTANDING RIM
MARKING fig. 4
Example: 6J x 15 ET43
5,00 = rim width in inches 1.
J = rim drop centre outline (side
projection where the tyre bead
rests) 2.
13 = rim nominal diameter in inches
(corresponds to diameter of the
tyre to be mounted) 3 = Ø.
ET43 = wheel camber angle (distance be-
tween the disc/rim supporting
plane and the wheel rim centre
line).