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Streetstock 125
Engine capacity
Maximum 125cc OE engine
The use of superchargers/turbochargers is prohibited
Engine type
Only four stroke OE homologated road engines.
No competition engines
Fuelling
Air filter and box may be changed or removed.
Original OE Fuel Injection to remain as fitted from manufacturer
All air-cooled engines have “NO” carb size restrictions
Only OE supplied ECU/CDI permitted (Euro/USA/UK all models ECU/CDI permitted) NO altered or race ECU/CDI
Any carb “UPTO” standard OE diameter permitted on water-cooled carb engines
Jets/needles/tubes may be changed on carburettors
Fuel mapping plug in boxes eg. power commanders/resistors/ignition boxes can be fitted but standard OE ECU/CDI must still be used
Exhaust maybe modified or replaced
Engine Tuning not permitted and must remain OE standard with no internal modifications at all
Starter motors if originally fitted must remain and be functional
No modification to the timing of the engines ignition pick-up or flywheel allowed.
Cutting of the ignition/fueling for the purpose of changing gears is allowed by a quickshifter mechanism
Chassis
Seat subframe may be modified/changed
No home made or one off or competition frames
Suspension
The forks must remain standard OE, any internal modifications are allowed , external preload adjusters allowed.
You can use “ANY” forks fitted to the same make/model of bike irrespective of year eg YZF-125 any year YZF-r125 forks/wheels, CBR125 any year forks/wheels “BUT” all parts must be originally fitted from the same Manufacturer
Rear shocks can be modified/replaced with no restrictions as long as they fit the original mounting points
Wheels
*Remain OE fitment for manufacturer permitted size 16″ 17″ 18″
Brakes
Pads, lines, master cylinders, discs, and footrest/hangers are allowed to be changed. Disc’s must remain the OE diameter for the model of bike.
Any chain and sprocket size can be used
Tyres
Any tyres permitted, tyre warmers are also allowed.
Bodywork
Any aftermarket fibreglass bodywork is permitted
Standard road bodywork is permitted but must have mirrors/stands removed. Head lamp and rear light glasses must be adequately taped to prevent splintering. Unused wiring for lights and switches etc may be removed.
Replacement parts only OE or pattern to OE spec parts can be used in engines
The only liquid engine coolant permitted is water
Oil sump plug and filler plug must be lock wired
A red rain light fitted to the rear of the motorcycle and switchable from the handlebars MUST be fitted
Honda plop class subject to enough entries will be air-cooled horizontal engine minimum 110/125 any tuning upto 6 gears, to be classed as plop “ONLY” requires honda frame all running gear is free of choice
Superstock 125
Engine
Upto 125cc fourstroke road homologated engine no tuning restrictions
No competition engines
The use of superchargers/turbochargers is prohibited
Chassis
Any chassis may be used
Wheels
The only Permitted wheel diameters are 16” 17” 18”
Tyres
Any tyres are permitted as are tyre warmers
Bodywork
Any race bodywork can be fitted.
The only liquid engine coolant permitted is water
Oil sump plug and filler plug must be lock wired
A red rain light fitted to the rear of the motorcycle and switchable from the handlebars MUST be fitted
50cc
Engine
50cc two-stroke, no tuning restrictions
Wheels
* Permitted wheel diameters are 16” 17” 18”
Bodywork
Any race bodywork can be fitted.
The use of superchargers/turbochargers is prohibited
The only liquid engine coolant permitted is water
Oil sump plug and filler plug must be lock wired
A red rain light fitted to the rear of the motorcycle and switchable from the handlebars MUST be fitted
* Dispensation for 50cc Wheel sizes can be applied for on a case by case basis *
Anything “NOT” mentioned above must be approved by the club
Minimum age 16 *dispensation may be given if previous race experience is proven*
Riders per team 2-4 upto 6hr event 2-6 above mandatory rider change every 30 minutes +5 minute window
Newcomers are advised to wear hi-vis bibs
ALL MACHINES AND RIDERS ARE SUBJECT TO THE FOLLOWING
- The Technical Officer shall check the machine for compliance
- It is the responsibility of the rider to ensure that a machine used in competition is mechanically
and structurally in a safe condition - Oil sump plug and filler plug must be lock wired
- All motorcycles must have a functioning red light mounted at the rear of the machine to be used during rain or low visibility conditions if your light isn’t working when needed you WILL be blacked flagged until a working light is fitted.
- Throttle controls must be self-closing.
- Petrol and oil filler caps when closed must be leak proof. They must be securely locked to prevent
accidental opening. - OIL CATCH TANKS & BREATHER SYSTEMS
Catch bottles / tanks must be fitted to the gearbox breather pipe, fuel tank breather pipe, carburettor overflow pipe(s) and the radiator overflow pipe (if applicable) , where an oil breather pipe is fitted the outlet must discharge into a catch tank located in an easily accessible position and which must be emptied before the start of the race. - All handlebar levers (clutch, brake, etc.) must be, in principle, ball ended or be rounded
- Minimum 2 riders per team, Le Mans start and rider 1 is the competitor to run across circuit and complete first lap
- Only 1 bike per team for the race
FLAGS USED TO CONVEY INFORMATION AND INSTRUCTIONS
Red: Race Stopped. IMMEDIATELY SLOW (with care) & proceed at touring pace to a stop
area as indicated. This will be pointed out at riders briefing or may be indicated by a circuit
marshal.
Any infringement of this rule will be penalised with one of the following penalties:
Disqualification – withdrawal of Championship points – suspension.
Yellow (Stationary): Proceed with caution – slow down,no overtaking up until the point
where the green flag is shown. Riders not observing the caution or overtaking rule will be
penalised.
Yellow (Waved): Extreme caution. Be prepared to stop – slow down, no overtaking up until
the point where the green flag is shown. Riders not observing the caution or overtaking rule
will be penalised.
Yellow: (With stripes): Caution, slippery surface – Ride accordingly.
Green: Safe to Race
Black: (with riders number shown) Mechanical / Riding Fault – Return to Pits and consult
official.
Chequered: End of race Return to Paddock or Park Fermē
Any infringement of the flag rules during a practice session will result in the cancellation of
the time of the lap during which the infraction occurred.
In case of infringement of this rule during the race, a time penalty may be imposed. In both
cases, further penalties
Riders must not ride or push their motorcycles in the opposite direction of the circuit, either on
the track or in the pit lane
RIDERS MUST OBEY THE FLAG SIGNALS, THE LIGHT SIGNALS, AND THE BOARDS
WHICH CONVEY INSTRUCTIONS. ANY INFRINGEMENT TO THIS RULE WILL BE
PENALISED ACCORDINGLY
During practice and racing riders must wear the following clothing and footwear:
A complete all in one leather suit or a Suit that is zipped together at the waist are permitted.
Competitor’s helmets bearing the current ACU gold stamp in sound condition and properly
fitted must be worn. Overseas riders may use helmet as approved by their own FMN.
Competitor’s footwear must be of leather and a minimum
height of 200mm to provide, with the suit, complete protection. No areas of skin to be left
exposed between the leg of the suit and the top of the boot.
Competitors must wear leather protective gloves. No areas of skin to be left exposed between
the wrist of the suit and the wrist of the glove.
One machine number must be displayed on the front of the motorcycle.
All riders and press must sign a declaration on the relevant signing on form
Force Majeure
The Clerk of the Course has the right to alter, abandon, cancel or postpone all or any part of a meeting
for reasons of force majeure. Such a decision shall not be subject to any protest.