Riders go airbourne off dirt jumps during the 2011 Motocross Challenge at the Preak Leap track. The 2013 event, sponsored by Top 1 Oil, will be held this Sunday. Photograph: Sreng Meng Srun/Phnom Penh Post

THE 2013 Top 1 Oil International Motocross Challenge roars into action on Sunday at the Flying Bikes Motocross Track in Preak Leap on the outskirts of Phnom Penh along National Highway 6.

The event is organised by Flying Bikes Shop and sponsored by Top 1 Oil, as well as co-sponsors KTM Motorcycles, Alaxan FR, qb, TV3, Phoenix and The Village.

An international field of riders from Cambodia, Thailand, France, Australia, Malaysia and Canada will compete across five categories including Expert, Novice, Open Enduro, Beginners Enduro and Kids class, with between 10-12 participants in each.

Along with the usual thrills of seeing bikers thrash their rides over a course of numerous dirt jumps, there will also be a freestyle exhibition to showcase the best stunts off a huge steel ramp.

According to a press release from the organisers, local favourite and French expatriate Pierre-Yves Catry of Flying Bikes 2 will vie with other established riders from the international circuit in the Expert Class, while Flying Bikes Shop duo Vong Ching Chov and Vong Khan Pov and Top 1 Oil rider Iv Leng will battle for glory in the Novice division.

Bikers as young as eight years old will be allowed on the track to compete in the Kids class for the first time in the event’s history.