The generosity of those present will help Harley on his rehabilitation and recovery journey, with over $15,000 raised from a memborabilia auction, rider entry fees and spectator donations.
Riders of all ages participated in the event, with the highlight a spectacular pro race at the conclusion.
Cameron Taylor took victory against the likes of Adam Monea, Cheyne Boyd and Troy Dorron.
Yarrive Konsky thanked those who attended and gave generously.
“I was overwhelmed by the compassion and selfless acts for so many, to show one boy that he does not need to battle alone,” he said.
“Harley, today you brought a nation of people together, legends do that. Thanks to the selfless acts of many we were able to raise a little over $15,000.”