17/10/2026
https://www.facebook.com/share/1MBWYGddVD/?mibextid=wwXIfr
One of the wildest long-game bets in modern motocross history might be Yamaha refusing to give up on the “backwards” YZ450F. 🔵🔥
In 2010, Yamaha completely flipped the conventional four-stroke layout on its head with a rearward-slanted cylinder, front intake and rear exhaust. The whole idea was mass centralization and a straighter intake path, but the early bikes were VERY polarizing. They were fast, but plenty of riders struggled with the handling and feel. Then came the moment that really put the whole project under a microscope: James Stewart left JGR Yamaha during the 2012 season and publicly said, “I feel like I can’t win” on the current Yamaha. 😳
At that point Yamaha could’ve scrapped the concept and gone back to what everybody else was doing. Instead, they doubled down. The reverse-cylinder layout went into the completely redesigned YZ250F for 2014, where it was much more warmly received, while Yamaha kept grinding away on the 450 with new frames, engine positioning, mapping, chassis flex and eventually smartphone-adjustable Power Tuner settings. 🔧📱
Then the story completely flipped.
Dylan Ferrandis won the 2021 450 Pro Motocross championship on the Star Racing YZ450F. Eli Tomac joined Star Yamaha for 2022 and won BOTH the 450 Supercross and Pro Motocross championships. Then Yamaha completely redesigned the YZ450F again for 2023, making it lighter, slimmer and easier to ride while keeping the same basic front-intake/rear-exhaust philosophy. 🏆🏆
That’s more than a decade between “what the hell is Yamaha doing?” and championship validation.
The coolest part of the story isn’t that Yamaha got everything right in 2010. They clearly didn’t.
It’s that they believed the IDEA was right and spent the next 13 years fixing everything around it until the bike finally became what they thought it could be. 👀🔥
Stubbornness or engineering vision? Probably a little of both. 😂
