BYC tyre pressure guages are in!

One of your main important little tool to not be missed when at a track day or race day.
Keeping tyre pressures even and to correct spec for tyre performance is a big gain on track when it comes to handling ad times

From the abuse your tyres get and the heat that is created the air within the tyres expands dramatically!
So when you see people constantly adjusting tyres pressures in the pits it because there trying to keep the ideal pressures when tyres are at max performance.