What is rolling resistance?

Posted by: Cal on 29/09/2014

Category: General

When you are looking to purchase new car tyres, one of the terms you may come across is rolling resistance - so what exactly does this term refer to?

Rolling resistance is the energy lost when your tyres are in motion. It is the force required to keep your tyres moving forward in a straight line at a constant speed. Sometimes, tyres can become deformed, as the tread is in contact with the  ground. This creates a flat patch on the tyre that is then rotated around it, which can affect their rolling resistance.

Why is rolling resistance important?

Tyres account for around 20 per cent of a car's fuel consumption, so it is essential to look for an energy-saving tyre with a low rolling resistance. This will help you save money at the petrol pump further down the track. This is also great for the environment as it will result in fewer carbon emissions.

Having your tyres pumped up an help you to minimise the effect of rolling resistance, but it is also important to consider the materials uses to create your tyres in order to maximise tyre performance.