Best Tyres – Rolling Resistence and your tyres performance…

Best Tyres – Rolling back the links between Physics and Tyre performance

Hey guys,

Newton’s First Law of Motion states that ‘every object in a state of uniform motion tends to remain in that state of motion unless acted upon by an external force’.

When we consider this law in relation to tyres, this external force is seen in the rolling resistance of the tyre, and it is primarily caused by the repeated deformation and recovery of the tyre as it comes into contact with the road surface. By deformation we mean the tendency for the tyre to go flat as the weight of the load flattens it against the road and by recovery we mean as it reforms into its normal circular structure.

Reducing rolling resistance is, in theory anyway, relatively simple – yet achieving a reduction in rolling resistance without compromising on other essential tyre performance is another matter.

You can achieve a reduction in rolling reduction by simply inflating your tyres more, they means they will roll easier. Great you say but Newtons Second law is ‘for every action their is an equal and opposite reaction’ and in this case things are fine until you turn a corner and your grip fails. So we need to find a happy medium… Well we don’t… The manufacturers already have.

Each tyre has an ideal PSi or Pounds of pressure per square inch and its written on the tyre wall. This is the pressure you should be inflating to and checking the inflation is at regularly.

If you are not sure how to do this give the team at Darra Tyres a call on 07 3333 5510 we’ll be happy to explain the Newtonian physics behind tyres in simple and easy to understand logic.

Keeping your family and fleet safely on the road,

Kevin and the Darra Tyres Team

About the Author

Kevin has been at the forefront of the tyre industry for over 20 years. Kevin's speciality is in industrial and commercial tyres including the management and upkeep of fleets. Kevin has worked with vehicles his whole career from painting, mechanical, suspension and panel beating he has also spent time in the Australia Army as a driver. He has driven all size of vehicles throughout his career so understands the demands placed on drivers.