Volkswagen Golf Service & Repair Manual: Winter tyres with speed symbol V
| The tyre industry now supplies winter tyres with speed
symbol "V". But only under certain conditions may these tyres be
used up to the maximum permitted speed vmax
= 240 km/h. |
| Vehicles requiring V tyres according to the vehicle's title
document may be driven at speeds of up to “v”max
= 240 km/h without any restrictions using winter tyres with
speed symbol V. |
| Vehicles with W, Y or ZR tyres: |
| Under certain circumstances, vehicles requiring W, Y or ZR
tyres according to the vehicle's title document may not be
driven at speeds of “v”max =
240 km/h. |
| V summer tyres and V winter tyres without special
identification have 100 % of their maximum load capacity (as
specified by their load index “LI”) only up to speeds of
210 km/h. |
| Travelling at over 210 km/h is possible with V winter tyres
only if the maximum load of the tyres is not exceeded. The load
capacity of the tyres decreases as the speed increases. |
| Some vehicles have such a high maximum gross axle weight
rating and maximum achievable speed that the load capacity of
the V tyres is not sufficient for speeds of up to 240 km/h. |
| Example: tyre 205/55 R 16 91V |
| The load index (LI) 91 certifies that this tyre has a load
capacity of 615 kg per tyre at up to 210 km/h. |
| At a speed of 240 km/h, this tyre can carry a load of only
560 kg, i.e. the axle load may not exceed 1120 kg. |
| The vehicle has a permitted gross axle weight rating of
1150 kg and an achievable maximum speed of 232 km/h. This
vehicle may only travel at speeds of up to 230 km/h with V
winter tyres. |
| This applies to all V winter tyres without special markings. |
| Winter tyres with the designation Extra Load XL
→ Chapter |
| Registration regulations in the Federal Republic of Germany |
| Only when winter tyres are in use may the top speed that a
vehicle can achieve be greater than the maximum speed specified
by the speed symbol of the tyre. |
| In this case, a label stating the following must be attached
at a location which is clearly visible to the driver: |
|
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| Important!
Winter tyres! |
| Maximum speed …
km/h |
M+S symbol
On an “M and S tyre” the tread profile, tread composition or
construction are designed so that the handling characteristics
are ...
The energy loss caused by the deformation of the tyre when
rolling is known as rolling resistance.
With rolling resistance optimised tyres the deform ...
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Winter tyres
Rolling resistance optimised tyres