195 — width in mm
/70 — height to width ratio (the height of the tire cross-section is 70% of its width)
If there is no data about this relation in the bus designation (for example, 175 SR 14) implies a "normal" height to width ratio (82%)
H — speed class — maximum permissible speed of a vehicle with these tires (H — up to 210 km/h (new tire models are not always indicated))
R — radial tire
14 — rim diameter in inches
89 — load capacity characteristic
Attention! If after the numbers 14 and 89 there is the designation "M+S", we are talking about tires with a winter profile.
Material was taken from a resource [www.opelbook.ru]
The letter designation of the speed class is indicated after the tire size and applies to both summer and winter tires.
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