You do not see many 64-year-olds cruising around on mountain bikes. You see even fewer hurtling downhill at breakneck speeds.
Auckland's Gordon Stilwell was literally in a league of his own at round three of the New Zealand Downhill Mountain Bike Series in Rotorua on Saturday - he was the only rider in the Masters 3 category.
Watch him cross the finish line, however, and you would have no idea he was racing only against himself. He flew down the last section of the track, a look of fierce determination on his face, pedalling hard all the way to the line.
"I turn 65 next week, I'll be a pensioner. I've been riding for about 10 years and competing for five.
"I come from a rallying background, so I love the adrenaline buzz and the speed. I guess, to start with, I'd never been great with balance and getting used to two wheels instead of four was quite hard, but I got into it," Stilwell said.