This info below is for Melbourne mini moto club ONLY. Victorian pocketbike association which race at dandenong use different (although similar) rules.
Melbourne mini moto race @ south morang, port melbourne, ballarat and nxt yr possibly a extra track.
As taken from the booklet downloadable from the link below:
http://www.ozminimoto.com.au/upimage...ndBook2008.pdf
I will add that 140cc bikes are now permitted to race.
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TECHINICAL INSPECTIONS AND BIKE SPECIFICATIONS
BRAKES: Must have operational front and rear disc brakes which can be cable or hydraulic operated. Cables are not to be frayed.
ENGINE STOP: Operational engine stop (Kill) switch must be fitted to the handle bars.
LEAKS: No oil or fuel leaks.
COOLANT: No Glycol based coolant allowed, must use water wetter/ engine ice or similar additive or straight water in radiators.
FUEL: Unleaded fuels only, octane rating and manufacturer open. NO, methanol, NOS, Nitro methane, fuel is permitted.
TYRES: Brand or manufacturer of tyres is open for all classes. Tyres must be in good condition and not showing any signs of excessive wear, no canvas showing.
FRONT FORK ASSEMBLY: No excessive play in steering head assembly and head stocks must be covered.
WHEEL BEARINGS: Wheel bearings must not have excessive play.
AXLES: Front and rear spindle & spindle nuts to be tight.
CHAINS AND GEARS: Chain and sprockets in good condition. Chain guard to be fitted and adequate.
FRAME: No cracks in chassis or wheels. All nuts and bolts to be secure.
BODY: Bike must have a full or half fairing adequately fixed.
THROTTLE: Throttle must snap shut when released.
FOOT PEGS: Foot pegs must be fitted and may be fixed or spring-up type.
Pegs must be plastic, rubber or plastic coated steel or aluminium only.
Bare steel pegs are not permitted. All outer edges must be rounded.
HANDLEBARS: Handlebar ends must be fitted or bar ends solidly internally plugged.
MUFFLERS & EXHAUST: Mufflers and/or exhaust pipes can not extend rearward past seat fairing and not have any sharp ends.
GEARING: Gearing ratios are open in all classes.
SEALS & BEARINGS: Seals and bearings are open in all classes.
THROTTLES AND LEVERS: Throttles and brake levers, (levers to be blunt ended and not sharp) are open in all classes.
PLUGS: All oil drain or filler plugs must be safety wired.
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RADIATOR OVERFLOW BOTTLES:
Radiator overflow bottle caps are to be safety wired.
RACE NUMBERS: Race numbers that have been assigned to you from the club, must be a minimum height of 60mm, must be displayed on front and on both rear side of the bike, and must be readable at a minimum of distance of 15 meters.
GEARS: All pocket bikes are to use a centrifugal clutch.
Maxi bikes are allowed to have gearing, but are to be locked in one gear during racing. Motards can use gears.
NOISE RESTRICTIONS: No bike is to exceed 95 dbl.
SMOKING: No smoking in pit area.
FUELING: No smoking while refuelling of bikes.
WALKING PACE: Walking pace in pit areas at all times and helmets must be worn at all times while riding of bike.
SCRUTINEERING: All bikes to be used on the racing surfaces must pass scrutineering. This includes spare or back up bikes. No bike may enter onto the racing surface during a race meeting without having passed scrutineering. If a bike is involved in an incident, then the bike is to be re-scrutineered to be asset as safe for racing.
All glass lenses, indicator, etc must be removed from bikes.
Oil drain and filler plugs must be safety wired.
Other fluid filler caps must be securely taped.
Kickstands must be removed.
Any hoses carrying fluids must be clamped or safety wired.
Catch tanks must be fitted to any drain hoses.
CLASS 8: MOTARD FOUR STROKE*.
Capacity: Maximum four stroke 125cc.
Motor: Chinese.
Gear box: Gear box maybe used.
All other parts open for seniors.
All others parts stock for juniors.
Tyres: Up to 12’ inch Slicks or treaded, no nobbies.
No combustion enhancers such as NOS may be used and all bikes must be naturally aspirated.
NOTATIONS: *
*) Production- defined as "stock configuration" and readily available for sale to all consumers. A production exhaust pipe may be modified to fit any model of pocketbike on the market but the basic specifications may not be altered. The best way to determine if your pipe or modification is classified as production or not is to contact The MMMCI. Please call or e-mail The MMMCI with any questions concerning this subject. Classification determinations ultimately rest with MMMCI officials.