WATCH: JACK MILLER’S YZ125 BIKE BUILD

We know MotoGP legend Jack Miller has an affinity for 125 two-strokes, and while Yamaha have given their YZ125 a refresh for 2026 along with a pretty much complete overhaul of the YZ450F, Miller recently added a brand-new YZ125 to his collection. Since no one knows how to build Jack a dirt bike better than Franko, he jumped on the tools and transformed the stock machine into a Pramac Purple race bike-inspired weapon. The legends at MXstore jumped on the opportunity to witness this bike build first-hand, and headed to Townsville to join Franko in turning Jack’s summer vacation into a full-blown motocross two-stroke project.

Watch Jack Miller’s YZ125 Bike Build below: