helmetRules & Class Structure
This page contains a brief overview of classes offered. We basically follow the guidelines set forth by AHRMA (the American Historic Racing Motorcycle Association). Changes have been made to women's class and kids classes have been added. pdf Download Our Rulebook


Rules


flagNoise Levels
All bikes must have silencers. Also recognize that even though some bikes have silencers they are obnoxiously loud and some measure should be taken to keep them to a tolerable level. Some of our events are close to homes, be considerate of our surroundings and others.

flagPit Riding
Must be done in low gear. As this series grows, we have more people milling about in the pits. Remember this and keep your pit speeds down to first gear. Parents, you will be responsible for your kids and their riding habits. Almost every track has a place for clean out and test as well as kids to ride. The pits are not it.

Be respectful also of the track owners hard work on providing a nice facility. Grass is the hardest thing to keep in good shape. If its muddy, please do not destroy the grass.


flagDrugs and Alcohol
If you are racing then do not drink ANY alcohol before your races are over. If you partake of illegal substances of any sort, DO NOT DO IT AT MOVMX EVENTS!!! Besides the obvious safety concerns it’s illegal and we are guests on the private property of others. Please respect the kindness of these people who let us race on their land.


flagHelmets
If you are on your race bike, your helmet should be on your head. Whether your racing, warming it up, or (I love this one) checking your jetting after just putting the carb back together. Put your helmet on.

If you are under the age of 18, your helmet MUST be on your head. Parents again you are responsible for your kids. Teach them safety please and keep injuries to a minimum.


flagNumbers
Please have the same number on all of your bikes. If you have more than one bike that you ride yourself please have the same number on each of them. The more numbers that you have on more bikes makes it harder to score each race. As we have gotten more and more riders, the duplicate number problem has become an issue. If you think someone else may have the same number, call me and ask. We can Fix it now before race day and make things easier for all of us. Also it is your responsibility to make sure that the numbers are legible. If the scorers can’t read it, you don’t get scored!


flagSign Up
Verify all information on your sign in card. Please make sure it is legible. Make sure to use one card for each class. If your number has changed, PLEASE MAKE NOTE OF IT. This is the information that is being put in the computer to score the races off of. If you don’t tell us what your number is, we can’t score you. The most important information is your name and number. Also make sure that you understand the forms you are signing. The release forms are for your protection as well as the owners of the facility, but you must understand that “this is a dangerous sport and you are responsible for your own decision to race”. You must sign your entry card and the release from as well.


flagKids Sign In
This year there will be a separate sheet for the kids and their parents to sign on race day, But “WE MUST HAVE A PARENTAL CONSENT FORM SIGNED BY BOTH PARENTS ON FILE BEFORE THE KIDS CAN RACE!” If you plan on having your child under the age of 18 race this year please get one of these release form either at the track or contact us and we will mail it to you.

flagPets
Your pets are welcome at MOVMX events. Please keep all pets contained with a leash. I am a pet owner too and I understand how a well trained animal can be trusted. But a random squirrel, fallen hamburger, or children can cause an animal to react in an unpredictable manner at any given moment. This is a motorcycling event with machines moving about in all directions. Your animal trusts you to keep it safe from traffic and other dangers, and the riders trust you to keep you animal away from the racing surface.



flagScoring
Scoring Race day awards Combined Moto Format: Placement for the finish of the day is determined by finishing spot of each moto. Lowest total wins the day. To determine this, simply take the riders two moto finishes and add them together. In the event of a numerical tie, the lower scores in the second moto determines the overall.

flagYear End awards
Points will be awarded towards championship according to each moto's finish. A rider will receive points if he or she is the sole class competitor. A rider must score points in at least six events to be eligible for series awards. best 8 races count towards championship total

The following points are awarded for each moto's placing.

Place Points Place Points   Place Points
1 20 5 10 9 6
2 16 6 9 10 5
3 13 7 8 11 4
4 11 8 7 12 3



flagPractice
Practice Practice is for the purpose of learning the track that is being raced on that day. It is the riders' responsibility to keep his or hers skills honed between racing events. Be sure you know which practice you are in and ride that practice only. I separate these practices by speed differences for a reason. For the safety of all riders, I want no expert riders on the track at the same time as novices. The speeds are different, the lines are different, and the thinking is different. Due to the increasing number of riders there will be 10 minute practices broken up by:

Practice 1: All liquid cooled machines with Expert and Intermediate riders.
Practice 2: All air cooled machines with Expert and Intermediate riders.
Practice 3: All liquid cooled machines with Novice riders.
Practice 4: All air cooled machines with Novice riders.
Practice 5: All youth classes 65cc and up
Practice 6: All Peewee.

If you can't quite grasp which practice you are in follow these instructions. 1. Do you have to put a liquid substance in the radiator? 2. Re-read practice order.

There will still be two rounds of practice per event on race day. Almost every event will have Saturday full practice.

A second round of five minute practices will follow. Ladies and gentlemen, not taking practice is the fastest way to insure injury. Make sure that you are signed in with enough time to practice and the best thing if you can is always walk the track. Ladies and gentlemen, not taking practice is the fastest way to insure injury. Make sure that you are signed in in time to practice and the best thing if you can is always walk the track.


flagRiders Meeting
This is information for you for the day and usually concerns your safety. Starting procedures, races order are important things. Please take this part of the day seriously. Every race of 2003 at least one person got into the wrong race. Riders meeting is to clarify any questions and make sure the guy next to you on line have the same understanding that you do as to what’s going on.



flagComplaints and Protests
If you feel that you have been wronged on the race track, or that someone has cheated you, or that there is a scoring problem, there will be a form this year so we can keep track of things. They will be located on the trailer door. These problems should be taken up with the referee, (Jim). Do not interrupt the scorers! These people are doing their best to keep things straight as you guys are racing. Interrupting them during races just makes things worse.


flagBike Changes
There will be a board on the trailer door. If you change bikes during the day due to technical difficulties or whatever, we must know your name, what race number you are in, what the parked bike number is and what the new bike number is. Lap scorers do not need to know. But the finish scorer and the starter will. (Finish scorer is the person entering the races into the computer, and the starter is the person checking you in at the starting line.)


flagClasses
Missouri Vintage Motocross classes are basically parallel to the rulebook of the American Historic Racing Motorcycle Association. We have an agreement to use their rulebook for basic machine guidelines and class structure. This facilitates the ease of movement from MOVMX to AHRMA regional and national events. The exceptions to this are as follows:

ALL CLASSES ARE MODIFIED CLASSES
  • If the modification and technology were available within the year of the motorcycle manufacture, that modification is acceptable. It is the responsibility of the rider to verify proof of modifications existence.
  • All modifications must be done in clean, professional, and proper manner and must be safe to operate. Only materials commonly available to the layman during that era are acceptable. No Carbon fiber, titanium, etc…If saving weight is that important, put down the donut and go for a walk.
  • Suspension: Modifications to suspension limited to number of shocks originally mounted on motorcycle. I.E. Converting to single shock or installing 74 motor in 84 frame not acceptable. UltimaII front forks must stay 1992 or older.
  • Sidestands. NONE. All stands are to be removed from all motorcycles.
  • In a couple of the classes, specifically the Plus 60 I have dropped the vintage and post vintage split. If you are 60+ years old and want to race motocross, I think you have earned the right to cheat on suspension a little bit.
  • The women's class is open to all MOVMX legal machines. The more the ladies like it on bikes that make them comfortable, and feel in control of the machine the better it is for all of us. This also makes the class big enough for the women generally to have a gate to themselves. Let’s face it “If Momma ain’t happy, ain’t nobody happy.”

flagSchoolboy Classes
The kids program is designed to be for the kids of vintage racers. It is not the focus of our program and is not designed to launch anyone into a pro career. It is only to make the sport a family oriented thing again.

Classes at this point are 50cc for the little guys. And 65cc plus for the larger kids. The 65cc plus class is also split for modern and vintage and limited to 100cc maximum displacement. And also a Youth fourstroke class for those kids with XR, DR type bikes, or playbikes up to 150cc. The focus of the kids classes are to introduce them to racing and competition. Being flexible to accommodate the needs of the youth will happen on the fly and decisions will be made by me (Jim) as the need arises. The term vintage has meant pre-74 or "of like design". Due to the rarity of pre 74 100cc bikes, I will change that to 1979 or earlier, twin shock. This will allow the use of Hodakas, Suzuki DS, TM and RM 100s, Yamaha MX and YZ 100s, Chaparrel, Kami, Indian Steen and all other Fuji motored machines. All single shock and later bikes will be considered modern. This pertains to kids classes only.

PeeWee                  50cc automatic machines and some 70cc xr types. Divided into age groups of 4-6 years    and 7-10 years.

Youth 65cc+           65cc thru 100cc 2 storke machines.  Novice 8-11 years and Advanced 12 to 16. Younger riders may ride the advanced class if qualified.

Youth 4Stroke          Up to 150cc Playbike excluding CRF150R

Youth Vintage Mini Air Cooled machines up to 83. Up to 80cc

Youth Vintage 100. Twin Shock, air cooled 100cc machines up to 79




flagCut-off For Eligible Bikes
Up to and including 1992 model year off-road motorcycles in "as produced" form. Period modifications using period parts, accessories, and materials are accepted.

What is Vintage, What is Post Vintage: Vintage bikes are generally Pre 1975 with a few “like design exceptions” Mostly the bikes that were before the longer travel era. These bikes will have 4” rear and 7” front suspension travel. Post vintage bikes will be 1975 and later. Bikes that push the travel over that 4” mark and on. There is more information available on the website about class structure.

Q. How do you set up the classes? This is not a rule but you should know how we try to do things when races are structured.

that are most important to race order is keeping like speeds together. For Safety reasons, I will almost never have an Expert rider on the track the same time as a novice. Most races will have combined levels of novice and intermediate or intermediate and expert. This is the first and most important thing to me. It is for the safety of all riders and spectators.

, displacement classes and age classes are seldom run together. For example, the Open Sportsman class is almost always the same entrants as the Plus 40 class. So if you want to share a bike with someone, one rider in displacement and one in age class is usually a safe bet on having some time to change riders.

is the separation of Vintage and Post Vintage bikes. This allows for a better break of races so riders get more rest time in the pits between races. Unfortunately riders with both Vintage and Post Vintage bikes run the greatest risk of getting back to back motos. The race format will generally be run with an alternating vintage, post vintage race order.

Class Structure


flagVintage Motocross

 

Class   Description
Premier Lightweight Certain pre-modern-era machines up to 250cc
Premier 500 Pre-1965-era machines up to 500cc
Premier Open Twins Pre-1965-era twin-cylinder machines 600cc and larger
Vintage 100cc
All pre 1975 100cc machines
Classic 125 125cc two-strokes and four-strokes up to 150cc, manufactured through December 1971 and any like machines
Classic 250 Specific 250cc and smaller two-stroke machines introduced just after the Premier Lightweight era, as well as the heavy 350cc non-unit motorcycles
Classic 500 Specific motorcycles introduced just after the Premier 500 era
Sportsman 125cc, 250cc and 500cc classes for machines up to model year 1974
Sportsman Open Twins Twin-cylinder machines up to model year 1974
Open Age Any eligible rider on any eligible vintage machine
+40 Riders over 40 years of age on any eligible vintage machine
+50 Riders over 50 years of age on any eligible vintage machine.
+60 Riders over 60 years of age on any drum brake machine
+70
Riders over 70 years of age on any drum brake machine
Women Women over the age of 16 Riding any MOVMX-eligible machine

flagPost-Vintage Motocross

Class   Description
PV 100
All post 1976 100cc machines
Historic 125 Certain 125cc and smaller motorcycles built up to and including the 1977 model year as the first-generation of long-travel machines
Historic 250 Certain 126-250cc motorcycles built up to and including the 1977 model year as the first-generation of long-travel machines
Historic 500 Certain 325-460cc two-strokes and four-strokes up to 636cc built up to and including the 1977 model year as the first-generation of long-travel machines
Historic Four-Stroke Certain four-stroke machines built up to and including the 1978 model year with up to 636cc. Overhead cam machines are limited to 500cc
Gran Prix 125 Certain post-1977 motorcycles up to 125cc
Gran Prix 250 Certain post-1977 motorcycles 126-250cc
Gran Prix 500 Certain post-1977 motorcycles 325-500cc two-stroke and up to 580cc four-stroke
Ultima 125 Certain motorcycles up to 125cc that do not have disc brakes
Ultima 250 Certain 126-250cc motorcycles that do not have disc brakes
Ultima 500 Certain 325-580cc motorcycles that do not have disc brakes
Ultima II Liteweight
Disc brake bikes up to 200cc. Any machine originally manufactured with disc brakes
Ultima II Open
Disc brake bikes 201cc plus. Any machine originally manufactured with disc brakes
Big Bike Open
This class is open to all vintage or post-vintage machines and riders of all skill levels. It is open to all adult class machines 125cc and up.
Big Bike Open is not a class for modern machines.
Trailbike Two or four stroke machines not originally designed for motocross use. IE. PE, IT, DR, KDX, XR etc. Pre 1992
Pitbike Air cooled four stroke, up to 150cc. I.E. TTR, CRF, DRZ etc.
Playbike  Air cooled four stroke, up to 230cc front disc, rear drum. I.E. TTR 225, CRF 230 etc.
PV Open Age Any eligible rider on any eligible Post-Vintage drum brake machine
PV+40 Riders over age 40 on any eligible Post-Vintage drum brake machine
PV+50 Riders over age 50 on any eligible Post-Vintage drum brake machine
Ultima II +40
Riders aver the age of 40 on Disc brake machines

                       Ultima ll +50     Riders over the age of 50
            Ultima  Ultima ll +60     Riders over the age of 60 any Ultima or Ultima ll MOVMX legal machine

riders 

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