When I m revving up on the quad bike ready to speed up a ramp 30ft high and fly over a line of vehicles below, the adrenaline starts to kick-in, said ex-world championship Motocross rider Jason Smyth who will be appearing at Devon County Show

When I'm revving up on the quad bike ready to speed up a ramp 30ft high and fly over a line of vehicles below, the adrenaline starts to kick-in," said ex-world championship Motocross rider Jason Smyth who will be appearing at Devon County Show - May 21-23.

Jason, who lives near Exeter, added: "There's always a bit of fear lurking in the back of my mind, no matter how often I perform these stunts, and I think it helps to keep my reactions razor-sharp."

He needs to have lightening reactions to safely execute these exciting stunts as he handles heavy machinery in extraordinary circumstances.

"A quad bike is a lot heavier and harder to manoeuvre than a motorbike and it's essential that I keep it level and in a steady line in order to land properly."

Jason is joined at the County Show by motorcycle rider Jamie Squibb and together they will perform a unique series of spectacular tricks and stunts in the Sainsbury's Ring. After their performances, visitors are encouraged to visit the Adrenaline Tour display stand, alongside the ring, to meet Jason and the team.

There is non-stop entertainment in six rings throughout the three days of the County Show, including the thrilling falconry display on horseback, Diggerland diggers, scurry driving, axe racing, vintage tractors, steam engines and performing dogs.

There are also magnificent animals, scrumptious local food and drink, lovely flowers and garden displays and non-stop entertainment in six rings.

This year, families are offered the best deals ever; for the first time children go free on half term Saturday, May 23, when accompanied by a paying adult. Adult tickets cost �14.50 and the over 60s can get two tickets for just �12 when bought in advance. www.devoncountyshow.co.uk