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:
Convertible: rollover protection system
The rollover protection system is activated automatically in the event of an
accident, a critical driving situation, an extreme tilt in the car's longitudinal
axis or upon loss of ground conta ...
Maintenance
Maintain the vehicle regularly to sustain the road
safety, operational reliability and the New Vehicle
Limited Warranty.
Specifications for required maintenance measures:
▷ BMW Maintenance ...
Contacts
...