Classes - (CCs are determined by the manufacturer)
Open Class
1. Any ATV may participate.
2. All ATVs must run ATV tires - tires specifically designed and marketed for ATV use.
3. No tracks, automotive tires or agricultural tires are allowed to run in this class.
4. Paddle tires designed and marketed for ATVs will be allowed to run in this class.
5. Participants may custom cut their tires as long as the tire is an approved ATV tire for the event, but cannot add any type of material to the treads.
6. Axle paddles, wheel paddles and dual wheels will not be allowed in this class.
Any engine modification can be made, but the engine must be an ATV engine.
7. Motorcycle, snowmobile or other engine conversion is not allowed.
8. The ATV cannot exceed 6'6" in width and 8'6" in length measured tip of tire to tip of tire.
9. Nitrous Oxide is permitted in the open class.
Pro Series Class
1. The Pro Series Class will include all ATVs 500ccs and up with twin cylinders.
2. Both IRS and SRA style ATVs will run in this class.
3. All ATVs must run ATV tires-tires specifically designed and marketed for ATV use. No tracks, automotive tires, cut tires, paddle tires or agricultural tires are allowed to run in this class.
4. ATVs may run up to 3" of total lift. Replacement a-arms are allowed to be swept forward or backwards but stock length axles must be retained.
5. Standard engine modifications are allowed to include over bore kits, jet kits, pipes, air filter, etc. as long as the total cc limit is net exceeded for the class.
6. This class will not allow special fuels such as alcohol or nitrous oxide. Turbos are not allowed to race in this class.
7. Axle paddles, wheel paddles, dual wheels, extended swing arms, extended a-arms, solid bars replacing shocks, etc. are not allowed in this class.
8. This class is designed for twin cylinders ATVs 500ccs and up to race with what is considered traditional or standard mud racing accessories readily available to the average rider.
9. Any ATV entered in this class that is determined by the race officials to exceed this description will be moved up to the first appropriate class.
Bogger Class
1. The Bogger Class will include all ATVs 500ccs - 750ccs. (Single Cylinders Only)
2. Both IRS and SRA style ATVs will run in this class.
3. All ATVs must run ATV tires-tires specifically designed and marketed for ATV use. No tracks, automotive tires, cut tires, paddle tires or agricultural tires are allowed to run in this class.
4. ATVs may run up to 3" of total lift. Replacement a-arms are allowed to be swept forward or backwards but stock length axles must be retained.
5. Standard engine modifications are allowed to include big bore kits, jet kits, pipes, air filter, etc. as long as the total cc limit is not exceeded for the class.
6. This class will not allow special fuels such as alcohol or nitrous oxide. Turbos are not allowed to run in this class.
7. Axle paddles, wheel paddles, dual wheels, extended swing arms, extended a-arms, solid bars replacing shocks, etc. are not allowed in this class.
8. This class is designed for single cylinders ATVs 500ccs - 750ccs to race with what is considered traditional or standard mud racing accessories readily available to the average rider.
9. Any ATV entered in this class that is determined by the race officials to exceed this description will be moved up to the first appropriate class.
Lite Class
1. The Lite Class will include all ATVs 499ccs and below.
2. Both IRS and SRA style ATVs will run in this class.
3. All ATVs must run ATV tires-tires specifically designed and marketed for ATV use. No tracks, automotive tires, cut tires, paddle tires or agricultural tires are allowed to run in this class.
4. ATVs may run up to 3" of total lift. Replacement a-arms are allowed to be swept forward or backwards but stock length axles must be retained.
5. Standard engine modifications are allowed to include big bore kits, jet kits, pipes, air filter, etc. as long as the total cc limit is net exceeded for the class.
6. This class will not allow special fuels such as alcohol or nitrous oxide. Turbos are not allowed to run in this class.
7. Axle paddles, wheel paddles, dual wheels, extended swing arms, extended a-arms, solid bars replacing shocks, etc. are not allowed in this class.
8. This class is designed for ATVs 499ccs and below to race with what is considered traditional or standard mud racing accessories readily available to the average rider.
9. Any ATV entered in this class that is determined by the race officials to exceed this description will be moved up to the first appropriate class.
RUV
1. This will be an open class with the same rules that apply to the ATV Open Class. This class can carry a passenger.
2. The passenger must wear the same safety gear and must be at least 16 years old and sign all waivers.
3. The driver and passenger must stay in the RUV cockpit during the race. Neither the driver nor passenger may exit the RUV at any time during the race to push or pull for safety reasons. This includes hanging arms and or legs from the vehicle during the race.
4. If the RUV is about to turn over, the driver or passenger may assist in preventing the roll over but may not push.
5. The race official's decision on this will be final.
Mud Chic Open Class
1. The Women's Open Class will be an open class race for women with the same rules that apply to the regular ATV Open Class.
2. If an ATV is borrowed for the woman's class that has already been ran in another class, she will not be able to compete in any other class, even if on a different ATV.
3. There is no Pro Series for woman at this time due to participation levels
Summary Chart of CCs
Lite 0 - 499ccs
Bogger 500 - 750ccs (Single Cylinders only)
Pro Series 500 and Up (Twin Cylinders)
Open must be ATV engine
RUV must be ATV engine
Woman must be ATV engine
Skimming will NOT be allowed in any class.
Rules and Regulations
Click here to read ECN Rules!