Bite-size tech: McLaren MP4-31 brake duct changes

The teardrop-shaped outlets (inset) that ordinarily allow heat from the disc to escape and then radiate into the wheel have instead been replaced by much larger apertures. These apertures don't expose the disc and, rather than allowing heat to radiate from the disc, it would appear that airflow collected by the main inlet is directed here to cool the tyre's shoulder. The Pirelli tyres ... Keep reading