Why is it so important to choose the right type and size of tires for your car? The right type and size will ensure optimum performance on the road.
Performance criteria usually expected out of a set of tires can broadly be considered as:
2.Traction on wet and dry road conditions.
3.Road noise and vibration levels.
Tire size(example 185/70-15)has of course been set and determined by the vehicle manufacturer and
details of this can be found in the owners handbook.Usually a standard size and an optional broader size with lower aspect ratio or lower profile(as in example) is recommended by the tire manufacturer for the standard rim size fitted to the vehicle.If there is any need to fit a different set of rims, always fall back on the manufacturers rim dimension recommendations.In order not to upset the steering geometry settings,the rim offset must always be maintained as original.
While a broader tire is `good looking` and gives better road grip, more rubber contact on the road increases rolling resistance resulting in lower fuel efficiency.
Based on road conditions and driving styles,the 4 commonly used tread pattern designs are:
1.Directional- has v-shaped pattern with large grooves. It is ideal for high speed water siphoning.Good grip especially on wet roads.
2.Symmetrical- has same pattern throughout with independent lugs. Good for wet and dry,quiet and long lasting. Recommended for everyday use.
3.Asymmetrical- has a mix of tread patterns combining directional and symmetrical adopting the benefits of both.
4.Directional/Asymmetrical- again a combination of tread patterns as the term suggests.
Tires for tropical climate use are made of a different compound as compared to the ones used in cold climate conditions.Tire manufacturer recommendations need to be followed.