When the rain bucketed down and the headwinds picked up, it was memories of his dad that kept 17-year-old Harry Price pedalling on.
The Trinity College schoolboy, who was among the 1336 cyclists in this weekend's Sunsuper Ride to Conquer Cancer, said his father was always in the back of his mind during the gruelling 200km journey.
Harry's father Matt Price - a renowned WA journalist and father of three - died of cancer in 2007.
This year he and two schoolmates, who have also had family members touched by the disease, decided to do something to raise money and awareness for cancer research.
"I wanted to do something in memory of Dad and my mates wanted to do it with me for their family," Harry said. "The longest I've ever ridden was 85km, so it was pretty hard to do the 200km, especially in Saturday's rainy weather.
"My mates kept me going and I thought of my dad a lot."
WA Institute for Medical Research director Peter Klinken said the event, now in its second year, raised $5.2 million for cancer research.
"Cancer impacts so many lives so it is extremely important to understand the disease and ultimately find a cure for it," he said.
Professor Klinken said one in two Australians would be diagnosed with cancer in their lifetime.