The 'Wall of Death' rider at the Royal Cornwall Show had to have part of his ear glued back on after crashing on Saturday.
The accident happened just after noon when one of the foot stands on Ken Fox's motorbike broke while he was taking part in the daring stunt.
Police and ambulance crews were called to the showground near Wadebridge and Mr Fox was transferred to Derriford Hospital in Plymouth by Air Ambulance.
He suffered friction burns to his face, alongside "scratches, bumps and bruises" to his chest and legs, and had to have part of one ear glued back on.
He was later discharged from hospital.
No one else was injured, however eyewitness spoke of panic in the tent, with people running for the exits.
The scene of the incident was been secured for investigation purposes and the Health and Safety Executive have been informed.
Writing on their Facebook page after the incident, the Ken Fox Wall of Death group said: "As I’m sure you have heard Ken took a tumble today on his Indian.
"Just to let you know Ken is safe and well and so is his Indian. Many thanks for all the kind messages."