Purvines Racing’s 2023 Yamaha YZ450F Off-Road Build

Yamaha’s 2023 YZ450F may very well have been the most anticipated new bike of the year and for good reason. The 2022 version ranked highly amongst most all media outlets, on the race track, and with consumers. With a big change looming, most were hoping the bLU cRU wouldn’t take a step back; however, our First Impressions late last year left us feeling good about the new bike. It’s now April and we just spotted our first look at a 2023 YZ450F in the hands of an off-road Pro. Trevor Stewart, riding for Purvines Racing Yamaha, decided to use this year as one big test session as he rebuilds from a wrist injury. First impressions are favorable for the former national champ, and overall, he feels it’s an improvement over his 2022 machine he spent all of last year racing and developing.

Between Trevor and his dad Brad, much of this bike is a homemade effort at the moment as parts are scarce, and the rest of the team is still focusing on the 2022 YZ450F/FX’s. Nonetheless, let’s take a look at what the Stewart’s deemed necessary to go off-road racing on the new whip.

Trevor has a good relationship with Enzo and works very closely with the suspension shop.
The rear shock features an A-Kit style adjuster but spares all the coatings.
The new tank design from IMS is very clean and simple. Removing the subframe and muffler is no longer necessary to remove the fuel tank.
The 2.8 Gal tank is slim and nearly resembles the stock tank in all the right places.
Tired of sitting on your dry-break receiver? The new tank allows for the upper seat attachment to remain in place.
A Precision Steering Stabilizer is fitted to stock Yamaha handlebars.
Brad fitted a 2022 YZ250FX skid plate to the bike, only using a little heat to remold some of the plastic around the updated frame.
Works Connection Radiator Braces add a little support around the radiators.
Trevor is a fan of the Stompgrip Grip Tape and runs it down the side of his bikes.
A Seat Concepts Seat adds some comfort and grip to the rocketship.
Trevor runs a 49T DDC Sprocket out back (same size as stock), but goes up to a 14T on the front.

Since the bike is still so new, there isn’t a ton done to this machine. However, Trevor felt comfortable enough to race on it and says in many ways, it’s better than the 2022. We’re looking to swing a leg over this bike in the coming weeks and give you an idea of how it handles, and possibly even compare it to his 2022 race bike in the process.

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