Tire size
Example: 255/55 R 19 107 V
255: nominal width in mm
55: aspect ratio in %
R: radial tire code
19: rim diameter in inches
107: load rating, not for ZR tires
V: speed rating, before the R on ZR tires
Speed letter
Q = up to 100 mph/160 km/h
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h
Y = up to 186 mph/300 km/h
See also:
Determining the load limit
1. Locate the following statement on your vehicle’s
placard*:
The combined weight of occupants and
cargo should never exceed XXX kg or
YYY lbs. Otherwise, damage to the vehicle
and un ...
Declaration according to NHTSA/FMVSS 138 Tire Pressure
Monitoring Systems
Each tire, including the spare (if provided)
should be checked monthly when cold and inflated
to the inflation pressure recommended by
the vehicle manufacturer on the vehicle placard
or tire i ...
COMFORT
For a balanced tuning with maximum driving stabilization.
Activating COMFORT
Press the button repeatedly
until the
program display in the tachometer
goes out.
In certain situations, the syst ...