Best known for his promotion of the Carlsbad USGP of Motocross and ABC's "Superbikers," Gavin Trippe was also one of the first to recognize the appeal of production-based Superbike road racing, giving the fledgling class exposure in 1973 when he included it on the bill at the Laguna Seca AMA National.

Thirty-plus years later, Trippe came out of retirement to champion another road racing class. Concerned with the spiraling cost of competition, he proposed a new race bike, one based on single-cylinder 450cc motocrossers that almost every manufacturer now produces. Engine and frame remain largely as-is, and with simple modifications to suspension and brakes, plus the addition of aerodynamic bodywork, a lightweight and affordable entry-class Formula 450 road racer is born.

As proof of concept, Trippe joined with Troy Lee Designs and Roland Sands Designs to build several F-450 examples. The latest is this Husqvarna, ready to race, based on the company's limited-edition 450 SMRR as seen in supermotard competition and at the X-Games. It features a six-speed transmission, slipper clutch, twin titanium exhaust pipes and a standard electric starter. Included in the sale are road racing spare parts and the original supermotard components. Offered on a Bill of Sale.