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Official Pitbike Classes and Rules for 2024

Bike Classes - ( All classes may not apply to each event, check with the specific event you are attending)

-Stock 110

-Stock Limited

-Stockmod

-FullMod

-40+

-Heavy weight

-Womens

-Xr100

-Playbike

-Playbike Limited

-Unlimited

-Unlimited B

-Youth 9-14

-Youth 3-8

-Stacyc

-Vintage Mini

-Stock (pitquad)

-Stock limited (pitquad)

-Open (pitquad)

-Ebike Open

( All class rules listed Below)

Class Rules -
**MiniMoto Nation reserves the right to alter these rules at anytime*
 

Stock 110 ​

  • Comfort mods only( Bars, springs, tires, peg bars, shifters, levers, chains, tires, sprockets, or cosmetic upgrades)​

  • No internal motor modifications

  • Must have stock exhaust

  • Must have stock airbox

  • Must have stock swingarm( No aftermarket allowed)

  • No aftermarket Throttle bodies (CRF) or Intakes

  • No aftermarket clutches

  • No additional aftermarket parts or modifications to the bike unless specifically approved in this rule section

  • NO PORTING Allowed( NO porting of head/intake manifold or any other parts on the bike)

  • No lightened flywheels or other components 

  • Must be air cooled 4 stroke

  • 110L not allowed. 110L rides in Stock Limited

Stock Limited

  • Aftermarket Exhaust allowed

  • Aftermarket A style swingarms allowed( Foes/BBR ETC)

  • throttle bodies/carburetors/intakes allowed

  • Porting/jetting/tuning is allowed

  • MUST RETAIN STOCK BORE/STROKE

  • Conventional style forks required( no inverted forks allowed unless from factory(most chinese style bikes)

  • KLX110L allowed

  • Disc brakes allowed( This is the class you will race a stock YCF110 and other off brand bikes that are 110cc)

  • aftermarket Clutches allowed

  • 114CC max ( no Big bores)

  • Must be air cooled 4 stroke

Stock Mod 110

  • 155cc Max Engine Size ( Any internal engine mods are OK as long as the bike meets the max engine CC requirement.)

  • Aftermarket exhaust allowed

  • Stock Style Suspension Required - Aftermarket A Style Swing Arms Permitted

  • Stock Style Forks Required (KX 65 forks OK) - Inverted Forks are NOT Permitted

  • Disc Brake Conversions Permitted

  • KLX110L allowed

  • Throttle bodies and Intake manifolds are permitted​

  • Air cooled motors 4 strokes only

  • clutches allowed

Fullmod

  • No Modification Restrictions

  • Wheels limited to 12” rear and 14” Front

  • Air cooled motors 4 strokes only

  • Electric conversions allowed. 

  • No surrons

PlayBike -

Bikes are limited to XR100, KLX140, KLX140L, CRF125, CRF150F, DRZ125, and TTR125.

Bikes Must be Air Cooled 4 strokes

190cc Max Engine Size

No Modification Limits Otherwise

 

Playbike Limited

- Bikes are LIMITED to KLX140, KLX140L, CRF125, CRF150F, DRZ125, and TTR125.

-NO XR100s

-150cc LIMIT

-No stroker cranks

-Bikes must be air cooled 4 stroke

40+
-No Modification Restrictions

-Must be air cooled 4 strokes

- Wheels limited to 17” rear and 19” Front.

-Rider must be of 40 years of age or older

Heavyweight

-Must be 220+ lbs for this class

-No modification restrictions

-Must be air cooled 4 strokes

-Wheels limited to 17" rear and 19" front

 

Womens

-190cc Max

-17/19 Max wheel size

- Must be air cooled and must be 4 stroke

 

XR100

-145cc Max

-Must be Honda XR100 Frame

-XR80s allowed

 

Unlimited
-17" Rear and 19" front max

-No cc Limit

-Must be air cooled

-Electric Conversions/bikes allowed, as long as all other requirements met. 

-Air cooled 2 strokes allowed

- Surrons allowed

Unlimited B

-Same rules as unlimited

-You cannot ride this class if signed up for any money class

-This class is designed to be an entry level class for people new to the sport/racing scene. You will be removed after practice if it is determined you are not a beginer rider.

- IF you have been on the podium at any MMN event, you are not eligible for this class.

Youth 9-14

-Must 9-14 years old

-12" rear and 14" front max NO BIG WHEEL BIKES/PLAYBIKES

-Must be air cooled

-Pw50s and JR50s allowed

Youth 3-8

-Must be 3-8 years old

-4 stroke ONLY (pw50s and jr50s allowed)

-110cc MAX

Vintage Mini

-110cc max engine size( 4 strokes 1999 and older)

-80cc max engine size(2 strokes 1976 and older MX race bikes & 1999 and older trail bikes)

-14" max rear wheel size

-Typical minis but not limited, to this class: z50,CT70,SL/XL70,KV75,XR75,GT80,YZ80(74-75),JT1,JT2, TM75(74-75) AND similar era Minis. 

Stacyc

- Must be an electric style balance bike

-16" max wheel size

Ebike Open

-Surrons, Talarias ETC.

-No full size electric dirt bikes allowed (stark etc)

-This class is open for now. May add in a Mod class depending on turnouts.

PITQUAD CLASSES

- ATC70s or equivalent allowed in all classes

Stock Pitquad

-Trx90 or equivalent style Chinese quad/ ATC 70s or equivalent

  • Comfort mods only( Bars, springs, tires, peg bars, shifters, levers, chains, tires, sprockets, or cosmetic upgrades)​

  • No internal motor modifications

  • Must have stock exhaust

  • Must have stock airbox

  • Must have stock swingarm( No aftermarket allowed)

  • No aftermarket Throttle bodies (CRF) or Intakes

  • No aftermarket clutches

  • No additional aftermarket parts or modifications to the bike unless specifically approved in this rule section

  • NO PORTING Allowed( NO porting of head/intake manifold or any other parts on the bike)

  • No lightened flywheels or other components 

  • Must be air cooled 4 stroke

  • ​STOCK/FACTORY STYLE SUSPENSION REQUIRED. AFTERMARKET SHOCKS ALLOWED.​

  • STOCK WHEELS REQUIRED. NO ADAPTER. AFTERMARKET TIRES ARE OKAY.

Stock Limited Pitquad

- 150 CC MAX

-Wheel conversions allowed.

-Air cooled four stroke ONLY

-Must have factory style suspension. NO suspension conversions allowed.

-Engine swaps are OKAY

-Modifications allowed as long as bike stays under 150cc.

FULL MOD/open Pitquad

-Air cooled 4 strokes ONLY

-Suspension Conversions allowed

-NO CC LIMIT

- Any Size wheel allowed. 

-BIKE MUST BE TRX90 OR EQUIVALENT.

                                                                             Protesting

-All protest or complaints must be made within 30 minutes of moto being protested

-MMN is not responsible for the breakdown of any bikes

-Breakdown will be done after all motos have ended.

- The bike in question must be broken down by the owner. One representative from MMN will be present during breakdown. 

-One representative from both parties may be present during the process.

- The cost to protest a bike is $300. If the party in question is not found Quilty, they will receive the $300. IF the bike in question is found QUILTY they will be suspended from MMN events until further notice and the $300 will be returned.

-MMN will not provide a mechanic to provide and engine break down. But the rider in question is welcome to use one if theyd like.

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