P – these tires are for a passenger vehicle. However 'P' denotes P metric size load and speed rating changes for P tire & non-P tires 195 – the nominal width of the tire is approximately 195 mm at the widest point 55 – indicates that the height of the sidewall of the tire is 55% of the width (107 mm) R – this is a radial tire 16 – this tire fits 16 in (410 mm) wheels 85 – the load index, a maximum of 515 kg (1,135 lb) per tire in this case H – the speed index, this means the maximum permitted speed, here 210 km/h (130 mph)