Fly Racing presents Racer X Bike Breakdowns from the pro pits. Kris Keefer chats with Haiden Deegan's mechanic Brent Duffe to learn what makes a factory Monster Energy Yamaha Star Racing YZ250F tick. Is Deegan on a different engine spec than other riders on the Star team? How does the squad prep for races at elevation? Plus, gearing details and more. 

Film/Edit: Tom Journet

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Since 1998, FLY Racing has aimed to provide customers with the very best in off-road performance products. Led by the revolutionary Formula S Smart helmet, FLY Racing continues to push innovation in safety to new levels. Never before has style and technology blended together so seamlessly as the 2024 FLY Racing line-up. For more info, check out FLYRacing.com or your local Western Power Sports dealer. Follow @flyracingusa on social media and cheer for all of the FLY Racing riders in the SuperMotocross World Championship.