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AMA Pro ATV Racing
Sound Testing Procedures Defined for AMA Pro ATV and Amateur Racers

Morgantown, WV - The ATV Promoters Group (ATVPG), in cooperation with AMA Racing and ATVA, announced that Pro ATV motocross racers will need to comply with slightly stricter sound-limit requirements now that they are competing under the AMA Pro ATV Racing banner.

The decibel limit for the 2007 racing season is 99-decibels. While racing in ATVA-sanctioned events last year, pro riders were required to comply with a 102-decibel limit as measured using the Society of Automotive Engineers J-1287 test standard. The test is performed with a sound meter on the "A" scale measured 20 inches from the exhaust, with the engine running at a designated rpm. For example, a 450cc quadcycle tested at 3,750 rpm.

AMA Pro ATV racing will use the same test on competitors, but instead of measuring machines at a designated rpm, the test rpm will be determined by the formula of 306,000 divided by the engine’s stroke. What this means is that the pro machines will be tested at a slightly higher rpm than in previous seasons.

Amateur racers will still be tested under the old procedures.

Another important distinction for this year’s pro competitors is that the race manager can require post-race sound testing. In that event, the AMA technical inspector will conduct the test, and the machine must meet a sound limit of 101 decibels.

Given the stricter requirements and the proximity of the first round of the series - the ATV Southern Nationals at Mill Creek Motocross Park in Pell City, Alabama, March 10-11 – Pro riders will be permitted a grace range within 3 decibels of the maximum limit of 99 decibels for the first four rounds of the series.

Thereafter, Pro riders must meet the 99-decibel limit by the fifth round - the Birch Creek National at Birch Creek in Danville, Virginia, April 28-29.

The 12-round Series revs up on March 10-11 with the ATV Southern Nationals at Mill Creek MX Park, located in Pell City, Alabama, and concludes August 11-12 with the Loretta Lynn’s Dirt Days, in Hurricane Mills, Tennessee.

About the AMA ITP/Moose ATV National Motocross Championship Series Presented by Parts Unlimited:
Sanctioned by the AMA and ATVA, the nation’s premier amateur and professional ATV motocross series is hosted by many of America’s premier motocross facilities. The 12-round series approaches its 21st season with the Pro class newly under the wing of AMA Pro Racing. The 2006 series hosted over 8,000 entrants, making it America’s largest, as well as its longest running, ATV National Motocross series. Series sponsors include title sponsors ITP Tires and Moose, and presenting sponsor Parts Unlimited. Premiere and Feature sponsors include ATV Sport, Moto Tees, Scott USA, Maxxis Tires, Elka Suspension and H-Bomb Films/Division Four. Associate sponsors include Weekend Warrior Trailers, Denton Racing, and Hinson Racing. Media partners include ATV Insider, ATV Rider and

About AMA Pro Racing:
AMA Pro Racing is the professional racing division of the American Motorcyclist Association (“AMA”). 2007 will mark the inaugural year for AMA Pro ATV Racing, as the sport’s top pro riders will be recognized as professional-licensed racers by the AMA Pro Racing division. Founded in 1924, the AMA has an unparalleled history of pursuing, protecting and promoting the interests of the world's largest and most dedicated group of motorcycle enthusiasts. The AMA focuses on rights, riding and racing through its government relations work, by sanctioning road and off-road riding activities and overseeing professional and amateur racing events. For more information about AMA Pro ATV Racing, visit

About the ATVA:
The ATV Association (“ATVA”) is the official sanctioning body of the amateur divisions of the ATVA ITP/Moose ATV National Motocross Championship Series Presented by Parts Unlimited. The 9,000 member ATVA is the sister organization of the 260,000 member American Motorcyclist Association (“AMA”). ATV racing has experienced phenomenal growth at the rate of 25% in the past two years alone, and continues to gain momentum and support, outselling off-road motorcycles annually. Each round attracts 600-700 racers who compete for bragging rights to one of 31 amateur national titles. For more information about ATVA, visit

About the ATVPG:
The ATVPG is comprised of the 12 individual promoters that host the AMA ITP/Moose ATV National Motocross Championships, presented by Parts Unlimited. The goal of the ATVPG is to raise awareness of ATV motocross through the production of professional and amateur championship racing events. For more information on the ATVPG and the ATV National events they produce, go to

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