THE Williamson siblings from Redlands BMX Club are gearing up to show off their skills against some of the best riders in the world.
Harry, 13, and younger sister Molly, 9, are training for the Union Cycliste Internationale BMX World Championships in Heusden-Zolder, Belgium this July, having been selected based on their national rankings.
The world championships will come midway through a year packed with competition for the Williamsons.
From February to November, Molly and Harry will compete in the BMX Australia national series, which consists of seven rounds held at tracks across the country.
Molly, who rides in the LumbaJack/SSquared factory team, is currently ranked first in the BMX Australia national series for her age group.
The next round of the series will be held in Darwin at the end of June.
The Williamson siblings are also preparing for the BMX Australia national titles in Shepparton, Victoria later in May.
"Being able to travel and bring out bikes to different places in Australia and the world is just as fun as riding at our home track," Harry said.
The siblings ride almost every day, training both independently and with coaches as well as competing on weekends.
Mother Donna Moller-Williamson said their busy training schedule stemmed from their passion for the sport.
"If they didn't love it we wouldn't do it so much," she said.
"They don't want to leave anything behind and they give the sport everything they've got."
Harry said the key to success in BMX was a love for the sport.
"You need a lot of training and just to be able to enjoy the sport, and not be forcing yourself to be the best," he said.
"You have to like the sport. You can't just do it because you want to be number one."
Among the Williamson's idols are American rider Connor Fields, as well as coaches Monique Smith, Bayley Wright and Brad Harris and Olympian Caroline Buchanan.
Molly and Harry hope to one day follow in Buchanan's footsteps and compete in the Olympic Games.
Until then, the siblings will continue to build their skills at competitions across the country with the support of their club.
Ms Moller-Williamson said the friends the family had made across the country through BMX had been instrumental in Molly and Harry's success.
"BMX is more than just a sport," she said.
"It's a family."