|  Summer
Tyres
The main characteristic of the summer tyre is excellent
driving and braking performance on both dry and wet roads,
in temperatures above freezing throughout the spring, summer,
autumn and winter. A simple block-shape tread pattern ensures
the tyre's contact area remains as rigid as possible, ensuring
maximium grip at all times by optimising friction with the
road surface. If the tyre has any special indication on
it, it means this tyre is for summer usage.
 Winter
Tyres
This type of tyre is suitable for snow and ice covered roads.
The tread pattern features a heavily siped, fine-block design
with grooves that are deep and wide, providing excellent
driving traction and braking performance on winter road
surfaces. The tread rubber used in winter tyres provides
good friction characteristics and suppleness even in low
temperatures. At present, winter tyre design is focused
toward braking performance and driving control on icy roads.
Recent developments in tyre pattern design and rubber technology
have greatly improved winter tyre performance.
All-season Tyres
T hese
tyres are designed to be used all year round to save having
to change the tyres to suit the season. All-season tyre
patterns are more complicated than those of the summer tyre
because of the longer block-edge for winter usage. More
sipes appear in the all-season tyre than summer tyre to
improve the braking and driving performance by maximising
the effect of edge. It is important to remember that in
regions where winter temperatures are very low and heavy
snow falls are frequent, braking performance will rarely
be 100 percent so it is safer to use winter tyres. All-season
tread designs will provide good all-around traction for
varing road conditions, but still provide good treadwear
and tyre noise characteristics.
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