See also:

Tire identification marks
Tire size 255/50 R 19 103 Y 255: nominal width in mm 50: aspect ratio in % R: radial tire code 19: rim diameter in inches 103: load rating, not for ZR tires Y: speed rating, before the R on ZR ...

Safety
The BMW 1 Series hasn't been crash-tested. It includes frontal, front-seat side-impact and side curtain airbags. Also standard are antilock brakes and an electronic stability system with traction ...

System limits
Sudden tire damage Sudden serious tire damage caused by external influences cannot be indicated in advance. A natural, even pressure loss in all four tires cannot be detected. Therefore, check ...