The temperature is around 85f currently, it's 10.30 a.m. and the riders are 16 hours in to their 24 hour challenge.

12.00 p.m will see the start of the six hour challenge which will see the top speed riders going all out to take on as many laps as possible in the short amount of time.

By 2.00 p.m the thermometers will be hitting 91F.

Crews worked through the night to support the racers