What Is the Effect of Tyre Tread, Compounds and Inflation Pressure on Efficiency and Wear?
The most visually distinguishable aspect of a tyre is the design of the tyre tread, but the effects of this reach considerably further than appearance. The grooves, channels and block patterns dictate the degree of contact between a tyre and the road surface, dispersal of water, as well as creating grips. Regarding rolling resistance, the tread design is a tradeoff between enhanced traction in wet or off-road operation, featuring deeper grooves and rough block designs, but resulting in energy loss as the block deforms during rotation. On the other hand, a cheaper, thinner tread pattern makes the rolling resistance less significant through the decrease of deformation, but at the cost of decreased adverse conditions grip. The factor of rolling resistance itself is very critical in fuel economy. The overcoming of rolling resistance is estimated to account for about 20 per cent of the fuel used by a vehicle. The design of treads which maximise block hardness and minimise heat generation en...