MX Sports Announces Rulebook and Classes for 2007

December 29, 2006 5:21pm

Morgantown, WV – MX Sports announces the official rulebook and classes for the 2007 Air Nautiques/AMA Amateur National Motocross Championships at Loretta Lynn’s. Rulebook changes include redefined rules in the Stock Class, and rules regarding the eligibility of the Honda CRF150R in specified classes. Class changes include: adoption of new names to reflect AMA Pro Racing’s Motocross and Motocross Lites designations; the Vet 30 class gains B/C designation, and all 30+ A riders will run the 25+ class; and the schoolboy class has now been further redefined into two separate age classes.

The full rulebook and class list are listed below. They act as a supplement to the AMA Sports Amateur Competition Rulebook. For more information, check out


1. Riders who have previously ridden at the AMA Amateur National Motocross Championships (the “National”) in any class or at any age may not participate in the C class.
2. In AMA districts or in countries where points are not kept in the C class, riders are not eligible for the C class at the National if they have raced prior to 2005.
3. If you now or have ever had any kind of factory support in any class you may not participate in any C class at the National.
4. 2006 AMA Amateur National Motocross Championship riders placing in the top 5 overall of B classes must ride A classes.
5. After qualifying, riders should not advance in class prior to competing in the National.
6. Riders qualifying for an AMA National Arenacross final (AMA Arenacross Class only), BooKoo Arenacross final (250F and 450F classes), or an FIM sanctioned pro event in the current or previous year may only enter the A/Pro Sport class at the National. The AMA Arenacross Lites class is not considered a pro class. 
7. Riders earning professional points or a professional national number in Motocross or Supercross for the current or previous year are not eligible to participate in the National program.
8. Riders may ride a stock motorcycle in a modified class.
9. 2008 model machines are NOT eligible in any class.
10. In the following age classes: Junior 25, Vet 30, Vet 35, Senior 40 and Senior 45, the age of the rider is based on his/ her age as of July 31, 2007.
11. In all youth classes, age is based on the rider’s age on January 1, 2007 as stated in the AMA Rulebook.
12. Proof of age must be available upon request of event referee or at rider registration.
13. All riders under the age of 18 years must have a parent present or a duly notarized parental consent form, as required by the AMA Rules and Regulations in order to participate.
14. Class 11: Vet B/C: Riders who have ever been classified as a Pro, Riders are allowed to ride only one 51cc class at the National.
15. Pro Am, or A rider in a non-youth class, are not eligible for this class. Supplemental Rules 1, 2, and 3 do not apply to Class 11.
16. Class 32: Girls (9-13) is a minicycle class.  Maximum wheel size: Front 17”; Rear 16”. 
17. Class 33: Women (12 Plus) is a Motorcycle class.
18. The Honda CRF150R Expert is only eligible in the following: Class 29: Supermini, Class 30: Schoolboy (12-15), and Class 33: Women (12 Plus).  The Honda CRF150R is only eligible in Class 29: Supermini.
19. Challenges to rider eligibility must be in writing and sent certified mail, postmarked no later than July 2, 2007.  Rider eligibility protests will not be accepted after that date.

Qualifying for the AMA Amateur National Motocross Championship:

In all regions there is a two-step Area Qualifier and Regional Championship program.  The Area Qualifier entry fee of $10 is paid at the Area Qualifier racetrack.  Riders may enter a total of 4 classes at the Area and Regional levels.  However, riders may ride only 3 amateur classes or 2 youth classes per day at the Qualifiers.  Riders may enter as many Area Qualifiers in as many Regions as they like.  At the Qualifier level, riders must receive a finish position in at least one moto in order to advance to the Regional level.

The Regional entry fee is $40 per class.  Area Qualifier and Regional tracks will charge additional admission and registration fees. Riders must choose only 2 classes for the National.  The 2007 National entry fee is $75 per class.  There are additional fees for parking, camping and pit vehicles.  Otherwise, there is no per person admission fee.

Riders who qualify in more than one Regional Championship will advance to the National from the rider’s “home” region. If the rider did not qualify from his home region then the selection will be from the Region in which the rider had the better finish. If there are multiple equal finishes, then the rider will be selected from the Region in which he first qualified.  All riders will move up one position in the Region in which a rider was not selected due to qualifying in more than one region.

Alternate selection at the National is based on a Power Ranking, calculated as follows: Finish position divided by number of riders in the class; multiply the result by 100 and then subtract from 100. The higher Power Ranking value will determine the alternate selection.

To be eligible for a STOCK CLASS, the following cannot be changed or modified:  Internal engine components, electronics, frame, carburetor, air box, swing arm, rim size, wheel hubs and exhaust system. Cylinder must retain the original manufacturer’s bore. Changes to carburetor jetting is allowed. Pistons and rings may be accessory items as long as they maintain the stock shape and design of OEM parts. No titanium pistons allowed. Material may be added to the existing frame for strength, including welding. OEM front and rear suspension can be altered with internal modifications only. OEM valve bodies must be used. Suspension spring rates may be changed to any commercially available spring rate. Any items not listed above may be changed or modified. Violations of the stock class rules as determined by the protest process or by the referee of the event will result in a disqualification from the event, or at the Qualifier level, assignment to the appropriate class. However, if a violation is deemed by the referee to be cosmetic in nature, with no performance advantage or willful misconduct involved, he may issue a warning or fine in lieu of disqualification.

In addition to the above AMA Stock Rule, the following apply to the Stock classes for the AMA Amateur National Motocross Program:

1. Parts/components that may be replaced or added include: fuel filters, air filters, gas line, handlebars, cross bar pads, non-metal open ended hand guards, serrated footpegs, lower fork leg protectors, spokes and nipples, decals, spark plugs, spark plug caps, sprockets, handlebar mounts.
2. Throttle assemblies must remain stock; this includes the kill switch on all machines, including the 51cc automatic machines.
3. Class 18: Oil injection systems must be present and fully functioning.  Only oil may be put in the reservoir. Pre mix gasoline is not allowed in the oil injection system.
4. Carburetor jetting may be changed (removable jets only) but may NOT exceed 25% larger than manufacturer’s recommended specifications.
5. Change to the engine or carburetor components is NOT allowed.  Removal of gaskets, O-rings or other components is NOT allowed.  Port cleanup is NOT allowed.
6. Aftermarket front fork hole shot devices are NOT permitted.
7. Metal hand guards are NOT permitted.
8. Rims can be replaced with OEM rims or aftermarket rims of the same size. Modifications to wheel hubs are NOT allowed.

Among those trying to qualify, the riders finishing in the top positions listed below are guaranteed to advance from Area Qualifiers to Regional Championships:
Northeast  8                                    Southeast  8
Mid-East  8                                     North Central  8
South Central  8                             Southwest  12
Northwest  15

In some geographic regions there may be more than forty riders eligible to participate in the Regional Championship.  If there are more riders at the Regional than the starting gate can accommodate, then qualifying races will be run.

Riders finishing in the top positions listed below are guaranteed to advance from the Regional Championships to the National; A minimum of 50% of the guaranteed qualifying positions from each Regional will advance to the National, regardless of the rider’s power ranking: 
Northeast  7                                        Southeast  7
Mid-East 7                                          North Central  6
South Central  6                                 Southwest  5
Northwest  4

About the Air Nautiques/AMA Amateur National Motocross Championships:
The MX Sports produced event is the world’s largest amateur motocross race. Hosted annually since 1982 at the home of country music star Loretta Lynn in Hurricane Mills, Tennessee, the event is the premier amateur motocross race in the world. In 2006, over 32,000 entries attempted to qualify in 33 classes for the 1320 available gates at the national. This year the National event will be held July 30th – August 4th, 2007. As proof of the significance of winning an AMA Amateur National Championship Title, most of today’s top motocross and supercross stars, including Ricky Carmichael and James Stewart, won championships at Loretta Lynn’s before turning pro. Sponsors include Air Nautiques, Amsoil, Thor, Honda, Yamaha, Kawasaki, Suzuki, KTM, Parts Unlimited, Ogio, FMF, Toyota, Gatorade, Wiseco, Kicker, Cobra, CTi, Boyesen, MotoTees, Alpinestars, Scott, Twin Air, Renthal, DC Shoes, EK Chain, DeCal Works, Liquid Performance and AGV Helmets.

About MX Sports
MX Sports is a Morgantown, West Virginia-based motocross production company. The group coordinates the Air Nautiques/AMA Amateur National Motocross Championships, which includes a national qualifying program consisting of 49 Area Qualifying races during February-May and 12 Regional Championship races during the month of June. Less than five percent of the Area Qualifier entries actually qualify for the national championship event, held during the first week of August at the home of country music star Loretta Lynn in Hurricane Mills, Tennessee. Most riders attend the National Championship with the help of their families. In fact, many groups consider the event their family’s summer vacation.

For the 2007 qualifier and regional schedule, supplemental rules, and other information, please visit or call 304-284-0101.