ProMX Rules and Regulations

General Rules

  • These rules and regulations govern all ProMX events. Modifications may be made at the discretion of ProMX Group race officials.

  • Riders or guardians are responsible for knowing their limitations, riding within them, and understanding the rules.

  • Riders must be 100% mentally and physically fit to compete.

  • The Steward or Promoter is the event authority, responsible for event management. Changes may occur due to weather, daytime hours, or nighttime conditions.

Rider Classifications and Age Rules

  • Riders must compete in the highest classification they have ever achieved with any recognized organization.

  • A rider’s age on January 1 determines their age for the year’s events.

  • Riders may not return to a lower classification without Promoter/ProMX approval.

  • Once a rider advances to a higher age class, they may not return to a lower age class or ride in the Beginner class.

Event Entry and Spectators

  • All spectators must wear the provided wristband throughout the event.

  • No refunds or rain checks are issued after race day practice.

  • Riders must own or rent a MyLaps Transponder to participate in any event or access the track during a ProMX race (not required for practice).

  • Riders must display proper numbers on front and side number plates. Failure to do so may result in not being scored, with no protest allowed.

  • Even with a transponder, number plates are mandatory.

Flag Signals

All flag signals must be obeyed immediately. Non-compliance may result in exclusion, position penalties, or suspension by the Steward.

  • Green (Waved): Start

  • Green (Displayed): All clear

  • Yellow (Displayed): Caution, reduce speed, hold position

  • Red (Displayed or Waved): Stop all riders

  • Black (Waved at One Rider): Rider stop at finish line

  • White: Last lap

  • Black/White Checkered: End of race

  • Blue: You are being lapped, let riders pass you

Race Conduct and Safety

  • The starting method is determined by the Steward, Promoter, or Starter at the event’s outset.

  • Additional conduct regulations may be issued for specific events and explained on-site.

  • Once events begin, only peewee (50cc) races allow one parent or guardian per rider on the track or infield. No minors are permitted on the infield during races.

  • Riders cannot ride or walk the track or infield after morning practice begins.

  • Outside assistance is prohibited during races, except for 50cc Peewee classes.

  • Excessive alcohol consumption will result in removal from the event. Riders consuming alcohol, drugs, or smoking marijuana will be disqualified and removed.

  • Riding or pushing a vehicle in the reverse direction of the course is forbidden unless directed by an authorized official. Violations may lead to suspension.

  • Cutting the track inside markers or hay bales is considered cheating, with position penalties at the Promoter’s discretion.

  • Illegal machines, upon protest, may lead to suspension of the entrant, sponsor, and pit crew, with all points forfeited.

  • Racing in the pit area results in immediate disqualification and possible suspension. A designated warm-up area may be provided.

  • All vehicles in the pit area must move slowly.

  • Jumping the start or blocking a starting gate/line incurs a position penalty. Repeated violations may lead to disqualification.

  • Unauthorized participants on the course will face disqualification and/or suspension.

  • Entering the course outside the starting area during a race or practice results in disqualification for the day.

  • No practice starts are allowed at the start line for safety reasons.

  • Riders are responsible for the conduct of their parents and pit crew. Bad conduct may result in suspension.

  • The Steward/Promoter may exclude riders for foul, unfair, or dangerous riding.

Protests and Appeals

  • The ProMX competition committee has final authority to settle disputes, with decisions binding on all parties.

  • Protests must be filed in writing within 30 minutes of class results posting, with a $300 fee. Part of the fee goes to the teardown company. If valid, the remaining fee is returned; if invalid, it is forfeited.

  • Protested entrants found with illegal machines receive no fees for labor or parts.

  • Protests must be submitted to the Promoter/Steward. For unclear rules, the Steward/Promoter makes the ruling.

  • No protests are allowed against the Steward/Promoter’s decisions.

  • Only riders or entrants in the same class as the protested machine/rider may file a protest.

Camping and Facility Rules

  • Campers must follow ProMX Group or raceway regulations and have permission to camp. Camping is a privilege, not a right, and fees may apply.

  • Foul or abusive language toward officials by riders, family, or pit crew may result in disqualification and penalties, including suspension.

  • Mail or online entries must meet the Promoter’s deadline.

  • No entry transfers are allowed without Promoter or signup booth approval.

  • Participants must complete and sign an official entry form and insurance release at signup or online. All entries must be checked in before entering the race track area.

  • Promoters/Stewards may refuse entry to any rider or person.

  • Keep pit areas clean. If no garbage cans are available, pack out all trash.

Event Structure and Scoring

  • Motocross classes will ride at least two motos if time and conditions permit. Changes will be announced promptly.

  • Olympic Scoring: 1st = 1 point, 2nd = 2 points, etc. The rider with the lowest total points wins. Ties are broken by the best score in the final moto.

  • Series Points:

    • Riders moving up a class before the series halfway mark may take earned points, provided they don’t exceed the new class’s points leader.

    • After the halfway mark, riders moving up start with 0 points.

  • Injured riders stopping a race cannot re-enter that race unless approved by the Starter, Referee, or official but may enter other qualified events.

  • Riders starting but not completing half the laps are scored as last place plus two positions. Non-starters are scored as last place plus three positions.

  • Riders have two minutes to reach the starting line after a call. Failure results in exclusion from that moto only.

  • Non-starters receive no score for the event.

  • Motos may be shortened for safety or other reasons, with riders informed via PA system.

  • Starting on the wrong gate drop results in a last-place score.

Motorcycle Requirements

  • Motorcycles must comply with regulations. Technical inspectors may exclude dangerous machines.

  • Safety is the primary concern. Riders and crews must maintain machines in top condition.

  • Rider Classifications:

    • Beginner (Beg)

    • Novice (Nov)

    • Intermediate (Int)

    • Expert (Exp)

    • Professional (Pro)

  • All side stands or kick stands must be removed before entering the race course.

  • Controls, cables, and footrests (folding type) must be in good condition and properly adjusted.

  • Stock Classes Eligibility:

    • No changes to engine, electronics, frame, carburetor, air box, swing arm, forks & shock body, triple clamps, rim size, or exhaust system.

    • Cylinder must retain original manufacturer’s bore.

    • Allowed modifications: carburetor jetting, fuel filters, gas line, handlebars, cross bar pads, non-metal open-ended handguards, serrated footpegs, lower fork leg protectors, spokes, nipples, decals, spark plugs, spark plug caps, sprockets, handlebar mounts.

    • Clutch/brake levers must be OEM or aftermarket of the same design/material.

    • Pistons/rings may be accessory items but must maintain OEM specifications.

    • Countershaft sprocket covers may be removed.

    • Suspension springs may be altered, but stock fork and shock body must remain.

    • Violations result in disqualification from stock class.

  • Modified Classes:

    • Crankcases must be from the production motorcycle engine. Sleeving, stroking, or boring to change displacement is allowed.

    • Engines must use the manufacturer’s crankcase, cylinder, and cylinder head.

    • Displacement must be stamped on the cylinder or engine case and not exceed class limits.

    • Overbore allowed up to class limits plus 0.080 inches per cylinder.

  • Stock Machines:

    • Must remain in showroom condition except for allowed modifications: carburetor jets, handlebars, sprockets, tires, chain, tubes, hand levers, foot pegs, grips, spark plugs, seat padding (minimum 1 inch), springs (stock fork/shock body), smaller wheels for smaller riders.

    • No larger wheels allowed.

    • All classes are modified unless stated stock.

Rider Safety Gear

  • All clothing must be inspected and approved at technical inspection.

  • Mandatory Protective Clothing:

    • Full-coverage, close-fitting clothing designed for protection (no capes).

    • DOT & Snell-approved helmets in fresh condition, worn at all times on the track and pit area.

    • Boots extending above the pant leg with ankle support and shin protection.

    • Shatter/splinter-proof eye protection, with riders responsible for correcting impaired vision.

  • Gloves and shoulder pads are recommended.

  • Unsafe machines or clothing, as deemed by the Steward/Promoter, will prevent competition.

Series Participation

  • Each series requires a minimum number of events and riders to qualify for end-of-series points, trophies, and awards.

Practice and Pit Rules

  • Riders caught in the wrong practice session may be required to sit out, be pulled from the event, or disqualified without refund.

  • Pit bikes are allowed at special events but may be prohibited at some tracks. Helmets are mandatory for pit riding.

  • Pit bikes may be used to travel from pits to sign-ups or starting gates.

  • Golf carts are permitted, but minors are prohibited from driving them. Violations result in confiscation until the event ends or removal from the event.

  • Golf carts must be parked at dusk and remain stationary until morning, except for staff safety patrols.

General Equipment Standards

  • Equipment must meet standards unless otherwise specified. Riders are responsible for safe component selection and fabrication.

  • Engines (Modified Classes):

    • Must use production motorcycle engine crankcases.

    • Sleeving, stroking, or boring allowed.

    • Naturally aspirated engines only.

    • Displacement/bore size designations on cylinders/cases must remain unaltered.

  • Fuel:

    • Petroleum-based gasoline per ASTM D4814, stored in approved containers.

  • Transmission:

    • Must be as cataloged by the manufacturer.

    • Special clutch levers/pedals allowed.

    • Starting systems may be removed; kick pedals must fold.

    • Single-speed (fixed) gearing for electric motorcycles.

  • Brakes:

    • Must be safe and operational (front and rear for motocross).

    • Brake ventilation allowed; friction brakes on tire/rim prohibited.

  • Wheels and Axles:

    • Aluminum wheel axles prohibited.

  • Frame:

    • Must be safe; titanium frames prohibited.

    • All stands removed.

    • Footrests must fold back at 45 degrees, max 5 inches from pivot, not lower than bottom frame tube.

    • Aftermarket subframes allowed (steel, aluminum, titanium, or OEM material).

    • Unsafe frames must be replaced with referee approval; only original components may be used.

  • Handlebars and Controls:

    • Must be steel, aluminum, titanium, or similar; no repaired/cracked bars.

    • Control levers require 1/2-inch ball ends.

    • Functional mechanical kill device or ignition cut-off switch required on handlebar.

    • Self-closing throttle mandatory.

  • Forks:

    • Must be adequate for the motorcycle.

    • Forks protruding over 1 inch above handlebars require protection.

    • Steering dampers allowed.

  • Gas Tanks:

    • Max 24 liters (6.34 gallons), safely mounted.

    • No leaking tanks or makeshift repairs.

    • No seat tanks.

    • Vent lines must prevent gasoline escape.

    • Carbon fiber/composite tanks prohibited unless homologated.

  • Fenders:

    • Front/rear fenders may be removed or replaced with secure, safe special fenders.

    • Rear fenders must extend to a vertical line through the rear axle.

    • No sharp fenders.

  • Chain Guards:

    • Must enclose primary drive (counter-shaft sprocket and primary back drive excluded).

    • No rear chain guard required.

  • Exhaust System:

    • Must be securely attached to frame with mufflers.

    • Discharge end must not extend past rear tire’s edge.

  • Tires:

    • No recapped/retreaded tires, studs, paddle tires, or liquid fillers.

    • Tires must be commercially available.

  • Number Plates:

    • Three plates required, securely mounted, clearly visible.

  • Prohibited Equipment:

    • Electronic communication or portable electronic devices during competition.

    • Streamlined parts, shells, or housings.

    • Lights, license plates, brackets, mirrors, glass, or hazardous equipment.

  • Electric Motorcycle Standards:

    • Must meet ISO13063 Voltage Class A requirements (OEM self-certified).

    • Master on switch and manual propulsion disable switch required.

    • Automatic propulsion disable for tilt (>5 seconds), battery fault (>5 seconds), or timeout (60 minutes).

    • Tether kill device may replace tilt sensor.

    • Throttle with redundant non-contact sensing, opposing direction signals.

    • System status LED indicating active propulsion, visible to rider/officials.

  • Battery Pack:

    • One main battery pack (removable, LiNiMnCo chemistry, max 60V DC).

    • Auxiliary battery (12V, non-propulsion) allowed.

    • Battery monitoring system required.

    • Rating label with voltage, energy, serial number, OEM branding, UN 38.3/UN3840 compliant.

    • No tampering or modification.

    • No changes after sight lap.

  • Electric Motor:

    • Single motor for rear wheel propulsion, mid-mounted (no hub motors).

    • Forward motion only.

    • Labeled with serial number and OEM branding.

  • Motor Controller:

    • OEM-marked, no aftermarket controllers.

    • May be integrated with motor, labeled as a power unit.

Motorcycle Classes

  • 50cc PW Class (4-6 yrs):

    • Max wheel size: 10 inches.

    • Max 12mm round intake, single-speed automatic, shaft drive.

    • No 60/65cc kits; OEM cylinder required.

    • Allowed: modified air box, air cleaner, exhaust, premix gas.

    • Stock frame and swing-arm.

    • KTM SX-E3 prohibited; SX-E2 allowed.

  • 51cc (4-6 yrs):

    • 0-51cc 2-stroke/4-stroke, no 60/65cc kits.

    • Single-speed automatic, max wheelbase 36 inches, max wheel size 10 inches.

    • 12-inch stock rims cannot be changed to 10 inches.

    • No KTM Senior/SX or King Cobras (KTM SX Mini allowed).

  • 51cc (7-8 yrs):

    • 0-51cc 2-stroke/4-stroke, no 60/65cc kits.

    • Single-speed automatic, max wheelbase 41 inches, max wheel size 12 inches.

  • 51cc 4-8 Open:

    • 0-51cc 2-stroke/4-stroke, no 60/65cc kits.
      single-speed automatic, max wheelbase 41 inches, max wheelbase 41 inches, max wheel size 12 inches.

  • 65cc Classes (7-11 yrs):

    • No 50cc allowed.

    • Min wheel size 12 inches, max front wheel 14 inches, max wheelbase 45.5 inches.

    • Classes: Beg (7-11), 7-9, 10-11, Open (7-11).

  • 85cc Classes (2025):

    • No 65cc or Supermini (112cc) allowed.

    • Max front wheel 19 inches, min rear wheel 12 inches, max rear wheel 16 inches.

    • Classes: Beg (15 under), Nov (15 under), Int (15 under), Open (15 under), 7-15, 7-11, 12-16, 7-16 Open.

    • Honda 150 allowed.

  • Supermini:

    • Max 112cc, max front wheel 19 inches.

    • Honda 150 allowed.

    • Eligible for Supermini and Schoolboy classes only.

  • Schoolboy Plus (2025, 12-17 yrs):

    • 122-150cc 2-stroke, 126-250cc 4-stroke.

    • Supermini allowed.

  • Schoolboy One (12-17 yrs):

    • Supermini-125cc 2-stroke, 150cc 4-stroke (no 250F).

  • Schoolboy Two (12-17 yrs):

    • 122-150cc 2-stroke, 126-250cc 4-stroke.

    • No minicycles or Supermini.

  • Women Mini:

    • 85cc and under, Honda 150 allowed.

  • Women Big Bike:

    • 125cc and up, no minis.

  • 125cc Classes:

    • No KTM 150cc, Supermini, or minis.

  • 250 Classes:

    • 125cc 2-stroke, KTM 150, 250F, 250 2-stroke allowed.

    • No minis, Supermini, or 450cc.

  • 450cc Classes:

    • 250 2-stroke, 250F allowed.

    • No 125cc or minis.

  • Class Movement:

    • Riders may drop from 85cc to big bike classes (e.g., 85cc Nov to 125cc/250F Beg). Promoters may move riders up if overqualified.

    • Vet riders (25+) cannot drop down classes.