TTXGP North American ChampionshipsZero-carbon motorcycle racing comes to Sonoma for a second straight year. There will be two feature races, one for the newly created Formula 75 class, as well as the premier Formula GP. The series featured 12 races in six countries in 2010, including the World Final in Spain. All motorcycles are powered by zero carbon electric drive trains.AHRMA National MotocrossNew for 2011 will be the AHRMA Legends of Motocross Nationals in the hills behind Turn 7. Legendary motocross racer and Bay Area resident Brad Lackey will host the event, which will feature two rounds of racing on Saturday and Sunday, plus a vintage swap meet and vintage bike show.Flat TrackEddie Mulder’s West Coast Dirt Track Series returns for a second straight year with racing in 15 different classes, highlighted by the Pro Digger Helm division. There’s also a Youth division open for young riders on bikes that are 50cc, 60cc and 80cc. More than 300 competitors are expected to compete on the short-track behind the Turn 9 Terraces.
Supermoto USASupermoto USA returns for a sixth straight year to the Infineon Raceway Karting Center. Race fans will be treated to action-packed racing on the three-quarter mile, 16-turn track, which is a combination of asphalt and dirt. It’s one of the most challenging tracks on the Supermoto USA circuit.May 11-12You won’t have to wait until Friday to take part in the fun. Festivities begin on Wednesday, May 11, with a 3J’s Motorcycle Track Day (3jsmotorcycledays.com), with all proceeds benefitting Speedway Children’s Charities, the charitable arm of Infineon Raceway. That night, get ready for motorcycle drag racing on the quarter-mile strip.On Thursday, May 12, LeoVince will host the 6th annual Grape Crushers Run. To take part in this day of easy riding through the Sonoma Valley, contact Leo Vince at leovinceusa.com.For more information or to purchase your West Coast Moto Jam tickets, visit infineonraceway.com/ama or call 800-870-RACE (7223).