2025 Race Classes and Supplemental Rules

2025 PALMYRA RACING ASSOCIATION MOTOCROSS RACING RULES

All motocross events held by Palmyra Racing Association (PRA) at Hogback Hill MX will be conducted according to the 2025 AMA Rulebook and the following supplementary rules:

MEMBERSHIP

AMA membership is required for all riders participating in a PRA event. A first-time rider without an AMA membership may race one time by purchasing a day pass at the event. AMA day passes are $25. Annual AMA memberships are also available for purchase at the event and are $49 for an individual or $98 for a family. For more information on AMA membership, please visit https://americanmotorcyclist.com/members-community/members/join-the-ama/

No district memberships are required to race!

2025 MOTOCROSS RACING SEASON

OPEN PRACTICE DATES	MOTOCROSS RACE DATES
Saturday May 10th	Sunday May 11th: Mother’s Day/Mini Moto Mayhem
Saturday July 12th	Sunday July 13th: KING OF THE HILL
Saturday October 4th	Sunday October 5th: Race to Remember

** A race which is cancelled due to severe weather may be rescheduled at the discretion of PRA.

All 2025 Palmyra Racing Association motocross events will have multiple district series points awarded. Any racer that is interested in district series points eligibility at a PRA motocross event should consult with their respective district.

Any questions regarding district series points or district related matters should be directed to the corresponding district. Contact information is available on their websites.

DISCLAIMERS

All riders are responsible for their own medical insurance and MUST sign all required liability waivers to be eligible to participate.

Unsportsmanlike conduct, or inappropriate behavior of riders and/or members of their family or pit crews, may result in rider disqualification and/or removal of the facility.

Classes	Age	Engine Size	Engine Type	2025 Rules & Equipment Specs
51cc Shaft/E2 Limited	4 - 8 Yrs.	51cc	Two -stroke	Single-speed automatic. two-stroke oil-injected. Maximum wheelbase 36 inches. Maximum wheel size 10 inches. Maximum seat height 22 inches. No larger than 12mm round intake. *Electric E2 bikes will also be allowed in this class
51cc Oil Injected	4 - 8 Yrs.	51cc	Two -Stroke	Stock, single-speed automatic, two-stroke oil-injected. Maximum wheelbase 36 inches. Maximum wheel size 10 inches. Maximum seat height 22 inches, round intake. *ESMX Points Only
51cc Junior Limited	4 - 6 Yrs.	51cc	Any	The Jr. Class will include all machines eligible for AMA classes 1, 3, and 4. Single or multi-speed automatic, maximum wheelbase 37 inches, maximum wheel size 10 inches, maximum seat height 24 inches, No larger than 14 inch round intake.
51cc Senior/ E-Bike Limited	7 - 8 Yrs.	51cc	Any	The Sr. Class will include all machines eligible for AMA class 2, 3, and 4. Maximum wheelbase 41 inches, maximum wheel size 12 inches, retrofitted 12-inch wheels are permitted on all class 2 motorcycles, no larger than 19” round intake. *Electric E3 and E5 bikes will also be allowed in this class.
51cc Open/ E-Bike	4 - 8 Yrs.	51cc	Any	Single-speed automatic. Maximum wheelbase 41 inches. Maximum wheel size 12-inches. Retrofitted 12-inch wheels are permitted on all class 2 motorcycles. No larger than 19mm round intake. *Electric E3 and E5 bikes will also be allowed in this class.
Mini-E Jr. Limited *PRA Only (No Points)	4 - 6 Yrs.	1kWh		Maximum (adjusted length) wheelbase 41 inches. Maximum wheel size 12 inches. Maximum seat height 25 inches. Retrofitted 12-inch wheels are permitted. OEM parts must be used.
Mini-E Sr. Limited *PRA Only (No Points)	7 - 8 Yrs.	1.5kWh		Maximum (adjusted length) wheelbase 41 inches. Maximum wheel size 12 inches. Maximum seat height is 28 inches. Retrofitted 12-inch wheels are permitted, OEM parts must be used.
65cc	7 - 9 Yrs.	60cc - 65cc 53cc - 125cc	Two - Stroke Four - Stroke	Minimum wheel size of 12 inches and a maximum wheel size of 14 inches, a maximum wheelbase of 45.5 inches.
65cc	10 - 11 Yrs.	60cc - 65cc 53cc - 125cc	Two - Stroke Four - Stroke	Minimum wheel size of 10 inches and a maximum wheel size of 14 inches, a maximum wheelbase of 45.5 inches.
65cc	7 - 11 Yrs.	60cc - 65cc 53cc - 125cc	Two - Stroke Four - Stroke	Minimum wheel size of 12 inches. Maximum front wheel 14 inches. Maximum wheelbase 45.5 inches.
Mini Combined	9 - 13 Yrs.	85cc Only	Two - Stroke	Maximum front wheel 17 inches. Minimum rear wheel 12 inches. Maximum rear wheel 14 inches.
Junior Mini	9 - 11 Yrs.	59cc - 85cc 53cc – 125cc	Two - Stroke Four -Stroke	59cc - 85cc two-stroke or 53cc - 125cc four-stroke. Maximum front wheel 17 inches. Minimum rear wheel 12 inches. Maximum rear wheel 14 inches. Maximum wheelbase of 51.5”.
Senior Mini	12 - 15 Yrs.	79cc – 85cc 75cc – 150cc	Two - Stroke Four - Stroke	79cc - 85cc two-stroke or 75cc - 150cc four-stroke. Maximum front wheel 19 inches. Minimum rear wheel 12 inches. Maximum rear wheel 16 inches. Maximum wheelbase 52.5 inches.
Supermini	12 - 16 Yrs.	79cc – 112cc 75cc – 150cc	Two - Stroke Four -Stroke	79cc - 112cc two-stroke or 75cc – 150cc four-stroke. Maximum front wheel size 19 inches. Minimum rear wheel 14 inches. Maximum rear wheel 16 inches. Maximum wheelbase 52.5 inches.
Schoolboy	12 - 17 Yrs.	122-150cc 126cc-250cc	Two -Stroke Four -Stroke	No expert level riders. Minimum front wheel size 21 inches. Minimum rear wheel size 18 inches. Minimum wheelbase 53 inches. No supermini. *Must be 14 years of age to race 250cc
College Boy	18 - 24 Yrs.	122cc – Open	Any	18 - 24 years of age on race day. Any rank.
25+ B/C	25 Yrs. & Over	122cc – Open	Any	25 years of age or older on race day.
25+ A	25 Yrs. & Over	122cc – Open	Any	25 years of age or older on race day.
30+ C	30 Yrs. & Over	122cc – Open	Any	30 years of age or older on race day. *ESMX Points Only
30+ B *CNYMRA 30+ B/C	30 Yrs. & Over	122cc – Open	Any	30 years of age or older on race day.
30+ A	30 Yrs. & Over	122cc – Open	Any	30 years of age or older on race day.
40+ C	40 Yrs. & Over	122cc – Open	Any	40 years of age or older on race day. *ESMX Points Only
40+ B *CNYMRA 40+ B/C	40 Yrs. & Over	122cc – Open	Any	40 years of age or older on race day.
40+ A	40 Yrs. & Over	122cc – Open	Any	40 years of age or older on race day.
45+ B/C	45 Yrs. & Over	122cc - Open	Any	45 years of age or older on race day. *CNYMRA Points Only
45+ A	45 Yrs. & Over	122cc - Open	Any	45 years of age or older on race day. *CNYMRA Points Only
50+ A/B/C	50 Yrs. & Over	122cc – Open	Any	50 years of age or older on race day. Any ranking
55+ Open	55 Yrs. & Over	122cc - Open	Any	55 years of age or older on race day. Any ranking
Girls	11 - 16 Yrs.	65cc – 112cc 90cc – 150cc	Two -Stroke Four -Stroke	Maximum wheelbase 52.5 inches. Maximum front wheel size 19 inches. Maximum rear wheel size 16 inches. Female only. *Must be 12 years of age to race a Supermini
122-125cc 2-Stroke	12 Yrs. & Over	122cc – 125cc	Two -Stroke	Minimum wheelbase of 53 inches. Any ranked rider allowed.
Women 99cc - 250cc	12 Yrs. & Over	99cc – 250cc	Any	Female only. *Must be 14 years of age to race 250cc
250cc Beginner	12 Yrs. & Over	122cc – 250cc	Any	First year riders and those that have not raced in a higher class are eligible. Advancing Mini Riders are not eligible for the Beginner class (they are considered Novice). Minimum wheelbase of 53 inches. *Must be 14 years of age to race 250cc
250 C	12 Yrs. & Over	122cc – 250cc	Any	This rank is for riders who have advanced from the beginner class or have not raced in a higher class. Mini riders advance to this ranking. Minimum wheelbase of 53 inches. *Must be 14 years of age to race 250cc
250 B	12 Yrs. & Over	122cc – 250cc	Any	This ranking is for experienced riders who have advanced from a lower class and have not raced as an Expert with any other organization. Minimum wheelbase of 53 inches. *Must be 14 years of age to race 250cc
250 A	16 Yrs. & Over	122cc – 250cc	Any	Highest ranked classification. Minimum wheelbase of 53 inches.
Open Beginner	12 Yrs. & Over	122cc - Open	Any	First year rider and have not raced in a higher class. Advancing Mini Riders are not eligible for the Beginner class (they are considered Novice). Must be 14+ years of age to race 250cc Must be 16+ years of age to race 251cc+
450 C	12 Yrs. & Over	122cc - Open	Any	This rank is for riders who have advanced from the beginner class or have not raced in a higher class. Mini riders advance to this ranking. Must be 14+ years of age to race 250cc Must be 16+ years of age to race 251cc+
450 B	12 Yrs. & Over	122cc - Open	Any	This ranking is for experienced riders who have advanced from a lower class and have not raced as an Expert with any other organization. Must be 14+ years of age to race 250cc Must be 16+ years of age to race 251cc+
450 A	16 Yrs. & Over	122cc - Open	Any	This rank is our highest classification. Must be 14+ years of age to race 250cc Must be 16+ years of age to race 251cc+
Open Electric Motorcycle	16 Yrs. & Over	Electric		Must be a Class B Electric Motorcycle. Minimum wheelbase of 53 inches.

PROMOTION

Per the AMA National Advancement System. Please visit the 2025 AMA Competition Rulebook for details: https://americanmotorcyclist.com/racing/racing-resources/racing-rulebook/

Any district members seeking district series points must race the same ranked classes that are raced at other district races, respectively.

RIDING RULES

For all Youth classes, the age of the racer on January 1, 2025, will determine their age for the remainder of the year. A racer may move to the next higher age class in the Youth Division only if they are eligible to do so at any time during the calendar year.

Riders under the age of 18 must adhere to one of the following in order to sign up at EACH event and/or practice:

1. BOTH parents must come to sign up with valid ID’s and BOTH parents must sign the minor release.
2. Complete the online AMA Annual Minor Release and present the release card received by the AMA at sign up. The completion of this step allows for only 1 parent/guardian to be present at sign up. The AMA Annual Minor Release forms are found: https://americanmotorcyclist.com/racing/racing-resources/annual-release/ Please be sure to select the appropriate corresponding form (Multiple Guardians or Sole Custody) and follow ALL instructions carefully to ensure proper completion. It is recommended that these forms be submitted at least 2 weeks prior to the event to ensure appropriate processing times. Please note, you will receive a confirmation email from the AMA that the release has been received, this first email is NOT the actual release card. Once approved, you will receive an additional email with the annual release card included for printing.
3. The minor release form available on the Minor Racer Requirements page can be printed, two sided, and in color to be completed by BOTH parents/guardians’ signatures and notarized. The completion of this step allows for only 1 parent/guardian to be present at sign up. This also applies to any situation where an individual other than the parent/guardian may be bringing a minor rider to the event.
4. For any sole custody parents/guardians that do not complete the online Sole Custody AMA Annual Minor Release, proof of sole custody must be shown at sign up.
5. Failure to comply with one of the above-mentioned approved minor release processes will result in the minor participant not being allowed to sign up. For questions or more information, please contact the PRA Secretary at hogbacksecretary@gmail.com.

Parents/guardians that were present at sign up must remain at the event until the rider is finished competing.

Riders must be 14 years of age to race a 250cc and must be 16 years of age to race a 450cc.
All electric motorcycles may ONLY be ridden in classes that specify the allowed use of electric motorcycles.

An official AMA referee will be present at all events. The event referee’s decision is final. Protests must comply with the AMA Racing Rulebook. Protests must be in writing and delivered to the referee no later than 30 minutes after results have been posted. The AMA Protest Form and applicable fees apply and will be made available from the referee and from the office. For further information on protest procedures, consult the AMA rulebook.

No rider will practice with any class other than the one that was signed up for. Failure to do this could result in disqualification from the event. One practice ticket per rider (not per machine) will be handed out at sign up. 50cc riders will be permitted to ride bigger bikes for practice also.

Riders in any 50cc class may be accompanied to the starting line by no more than one parent or guardian. In the case of an additional parent/guardian entering the course without permission from the referee, the penalty will be at a minimum, the loss of two finishing positions, up to a maximum of rider disqualification for the day.

It is the rider’s responsibility to be aware of all AMA equipment rules and class specifications to avoid disqualification.

All helmets must be intact, with no modifications made to their construction that alters the helmet from the condition in which it was tested and approved. The helmet is made to provide protection and is not a platform to attach foreign objects. For example, cameras or other accessories are NOT permitted to be attached to the rider’s helmet.

The referee/promoter shall determine moto length by laps per class. The referee/promoter will use the AMA’s recommended moto length, track and weather conditions, and number of participants in making their determination.

A mandatory riders meeting will be held before practice. The promoter shall introduce the referee for the day at the rider’s meeting.

No refunds will be issued after practice has started.

Pit vehicle riding, except in locations and times designated by Palmyra Racing Association, will be grounds for immediate disqualification from the meet. Pit riding rules, mandatory registration passes, and allowed location and time information are available at the tower. Rider Reps, referees, and all track officials will assist in the enforcement of this rule. For any questions or additional information about pit vehicle usage, please contact the PRA Secretary at hogbacksecretary@gmail.com.