See also:

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 ti ...

Run-flat tires
The symbol identifying run-flat tires is a circle with the letters RSC on the sidewall. Run-flat tires comprise a conditionally self-supporting tire and a special rim. The reinforcement in the ...

The concept
The parking brake is used to prevent the vehicle from rolling when it is parked. Engine switched off: the parking brake acts on the rear wheels. Engine running: the parking brake acts on ...