AMA Formula Xtreme
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "AMA_Formula_Xtreme".

Formula Xtreme is a professional racing class that is sanctioned by the American Motorcyclist Association, the premier (largest and most widely covered by media) motorcycle racing sanctioning body in the United States. Formula Xtreme is part of the AMA's Superbike Series, which also includes AMA Superbike Championship, AMA Supersport Championship, and AMA Superstock.

In order to be successfully entered in a Formula Xtreme event, motorcycles must be homologated. They must also be of a model type that is designed and legal for street use in the United States and is available from retail dealerships in the U.S.

Although liberal by the standards of the other classes in the AMA Superbike Series, Formula Xtreme rules still limit the modifications that may be made to a motorcycle to be entered in a Formula Xtreme event. The rules specify what changes are and are 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 specify mimimum weight limits, allowable fuel types, which production components must be left in place and rules for availability of non-stock components from the manufacturer. Lastly, the type of engine (displacement and configuration) is governed by a set of guidelines that attempts to bring technical diversity to the class by establishing technical limitations that allow different technologies to remain competitive. For example, air/oil-cooled twin-cylinder engines are allowed a larger displacement limit. There are 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 remain competitive.

Merrill Vanderslice, AMA Pro Racing's Director of Competition, stated ¹:

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 in the AMA Formula Xtreme Series include the Big Four; Honda, Kawasaki, Suzuki and Yamaha, and in 2008 BMW, Ducati, Triumph and Buell were represented as well.

Perhaps the most well known event on the annual Formula Xtreme calendar is the Daytona 200, which is not only the inaugural event of the Formula Xtreme season each year, but is also the longest event on the Formula Xtreme calendar (in terms of distance and number of laps).

References

• 2007 AMA Pro Racing Rulebook for Road Races

External links

• amasuperbike.com Official website

This Motorcycle racing-related article is a stub. You can help Wikipedia by expanding it.