Motorcycling Australia has selected a winning formula for its defence of the FIM Monster Energy Motocross of Nations (MXoN) in the United States of America from October 3-5, with Jett Lawrence, Hunter Lawrence and Kyle Webster returning for another tilt at the prestigious Chamberlain Trophy.

The trio will again take exceptional form into the massive international event, as Team Australia sets out to be the first country to go back-to-back since France in 2014-2015.

After injury-interrupted American supercross seasons, Queenslanders Jett and Hunter have both returned to racing with blistering form in the AMA Pro Motocross Championship on their factory Hondas. They are currently running 1-2 in the USA's premier 450cc class with three rounds remaining – the same category where Jett produced a remarkable unbeaten season in 2023.

Round nine of AMA Pro Motocross will be held at Ironman Raceway in Crawfordsville, Indiana on August 9, which is the host venue for the 2025 MXoN.

Meanwhile, reigning Penrite ProMX Championship presented by AMX Superstores (ProMX) champion Webster (Honda) has again been embroiled in a high stakes battle for MX1 honours in 2025.

He now returns to complete the formidable trio representing Motorcycling Australia at the MXoN, but his immediate focus is on retaining his ProMX silverware at the final two rounds in Toowoomba (July 27) and Queensland Moto Park (August 2-3).

With all three 2025 MXoN riders in sparkling form, Australian team manager Michael Byrne – a former Australian MXoN representative – is exuding an air of cautious optimism, treading the fine line between confidence and realism at the event where boisterous crowds and heaving grandstands are the norm.

“The memories of last year’s victory in England are still so vivid,” said Byrne. “It was a very emotional day, not just for Jett, Hunter and Kyle, but also for former Aussie MXoN heroes who were also at the event. It was a sweet victory for the sacrifices that so many people have made over the last five decades trying to win the Chamberlain Trophy.

“A year on, I’m delighted to welcome Jett, Hunter and Kyle and back into the fold and congratulate them on their individual performances so far in 2025.

“We’re certainly now in uncharted territory as the defending champion, which creates its own set of unique circumstances in such a pressure-cooker event.

“But on the flipside, it’s a litmus test which makes us even more determined, and we won’t be leaving any stone unturned to give ourselves the best chance of going back to back.

“We’ve already proven we can succeed on the big stage, and I’m confident Team Australia has the work rate, temperament and speed to do it all again.

“We can’t wait for October to come around, and we know there is a huge amount of support coming from Australia which is absolutely brilliant.”

Byrne will again be supported at the event by Gary Benn – who was previously a long-time Australian team manager – and Motorcycling Australia motocross commissioner Mark Luksich

There are three separate classes at the MXoN – Open, MXGP and MX2 – which compete against each other once. A team can also drop its worst result.

Team Australia management will decide closer to the event which classes Jett, Hunter and Kyle will compete in as part of its overall strategy to again take home the MXoN victory.

The final entry list for the 2025 MXoN will be released shortly, which will include all the European heavyweights such as France and Italy as well the most successful team in history – America.

In 2025, Team Australia will again be supported by online retailer MXstore, which stocks a huge range of riding gear, aftermarket dirt bike parts and accessories.