A total of $37,600 was raised for Childhood Cancer Canada during the 11th annual R.O.C.K. Ride.
Some 111 motorcycles took part in the event, which began and ended in Sarnia on July 5.
The event is held in memory of Samantha Thomas, who died of cancer shortly before her third birthday in 2004.
Ride for Our Cancer Kids has now raised more than $340,000 since its inception.