Formula Xtreme was a professional racing class sanctioned by the

American Motorcyclist Association The American Motorcyclist Association (AMA) is an American nonprofit organization of more than 200,000 motorcyclists that organizes numerous motorcycling activities and campaigns for motorcyclists' legal rights. Its motto, mission statement is "t ...

. Formula Xtreme was part of the AMA's road racing series, which also included

AMA Superbike Championship AMA Superbike Championship is an American motorcycle racing series based in the United States. The series is organized by MotoAmerica and is sanctioned by the American Motorcyclist Association (AMA) as well as the Fédération Internationale de ...

AMA Supersport Championship AMA Supersport is an American motorcycle racing series. The race series was founded and sanctioned by the American Motorcyclist Association (AMA) in 1987. The road racing series allows motorcycles of up to 600cc engine capacity. The American Mot ...

, and AMA Superstock.

Rules

Motorcycles were homologated and had to be of a model type that was designed and legal for street use in the United States and was available from retail dealerships in the U.S. Although liberal by the standards of other classes AMA road racing series, Formula Xtreme rules still limited the modifications that may have been made. The rules specified what changes were and were not permitted, including modification or replacement of various engine internals, transmission components, and other non-powertrain components of the vehicle such as the suspension, wheels, frame, swingarm, bodywork, wheels, etc. The rules also specified minimum weight limits, allowable fuel types, which production components had to be left in place and rules for availability of non-stock components from the manufacturer. Lastly, the type of engine (displacement and configuration) was governed by a set of guidelines that attempted to bring technical diversity to the class by establishing technical limitations that allowed different technologies to remain competitive. For example, air/oil-cooled twin-cylinder engines were allowed a larger displacement limit. There were also differences in allowed modifications to engine internals depending on the engine configuration, again to encourage technical diversity in the class by ensuring that motorcycles with different engine configurations remained competitive. Merrill Vanderslice, AMA Pro Racing's Director of Competition, stated:

By design, Formula Xtreme rules are the most liberal of all the classes within the AMA Superbike Championship...The intent of the Formula Xtreme class is to include a diverse group of motorcycles...

Manufacturers represented

Manufacturers represented in the AMA Formula Xtreme Series included the Big Four;

Honda commonly known as just Honda, is a Japanese multinational corporation, multinational Conglomerate (company), conglomerate automotive manufacturer headquartered in Minato, Tokyo, Japan. Founded in October 1946 by Soichiro Honda, Honda has bee ...

, Kawasaki,

Suzuki is a Japanese multinational mobility manufacturer headquartered in Hamamatsu, Shizuoka Prefecture, Shizuoka. It manufactures automobiles, motorcycles, all-terrain vehicles (ATVs), outboard motor, outboard marine engines, wheelchairs and a va ...

and Yamaha, and in 2008

BMW Bayerische Motoren Werke AG, trading as BMW Group (commonly abbreviated to BMW (), sometimes anglicised as Bavarian Motor Works), is a German multinational manufacturer of vehicles and motorcycles headquartered in Munich, Bavaria, Germany. Th ...

Ducati Ducati Motor Holding S.p.A () is an Italian motorcycle manufacturing company headquartered in Bologna, Italy. History Barely a month after the official liberation of Italy in 1944, SIATA announced its intention to sell this engine, called ...

, Triumph and Buell were represented as well. Perhaps the most well known event on the annual Formula Xtreme calendar was the

Daytona 200 The Daytona 200 is an annual motorcycle road racing competition held in early spring at the Daytona International Speedway in Daytona Beach, Florida, Daytona Beach, Florida. The race was founded in 1937 when it was sanctioned by the American Mo ...

, which was not only the inaugural event of the Formula Xtreme season each year, but was also the longest event on the Formula Xtreme calendar (in terms of distance and number of laps). With Daytona Motorsports Group's takeover of AMA Pro Racing in 2009, Formula Xtreme was replaced with the Daytona Sportbike class.

Champions

References

{{reflist * 2007 AMA Pro Racing Rulebook for Road Races Formula Xtreme Motorcycle road racing series