(d) (e) (f) (g) (h)
T9-1-12 (a) (b)
(f) T9-1-13 T9-1-14 T9-1-15 T9-1-16 T9-1-17 (a)
(b) (c) T9-1-18
The rear mudguard must extend at least 5 degrees behind a vertical line running through the centre of the rear wheel. Both front and rear mudguards must be made of flexible materials and the mudguards should not cause injury when damaged. The rear wheel spokes must be enclosed (on the right hand side) by solid disc which must be within the confines of the rim. No type of streamlining is allowed. Definition of „streamlining‟: any addition to the handlebars or to the frame of the machine, the effect of which is to shield the rider‟s arms, legs or body from the air stream (with the exception of the normal front number plate). Dirt Deflectors: Dirt deflectors may be used. All dirt deflectors must be approved by SNZ (FIM homologated accepted). The dirt deflector arm(s) and pivot mechanism must be constructed of the highest grade materials, with minimal distortion and maximum durability under all riding conditions. The arm(s) must be able to pivot a minimum of 25 deg in an upward direction to allow safe operation when the front wheel lifts. Any pivot arrangement must have its centre of rotation a maximum of 70mm from the rear wheel axis. The mechanism must maintain constant function of the pivot arrangement and be able to return the dirt deflector „flap‟ to its normal operating position with minimal delay. The dirt deflector „flap‟ must be easily replaceable, constructed of a resilient, non metallic material and remain effective under all track surface and wind conditions. The upper flap edge to the complete tyre tread width is 18mm (+/- 5mm) and the lower edge shall be 35mm maximum from the track surface over an equal distance. Outside of this centre section, the lower edges may slope up to a maximum of 50mm above the track surface. The deflector flap must be set at an angle, between 30deg and 50 deg maximum to the track surface, measured on the longitudinal centre line of the machine. The deflector flap width to be 250mm minimum and 300mm maximum. The flap centre must be positioned within 10mm offset to the left of the tyre centre line, in the normal riding position. The flap holder width to be 100mm min and 160mm max. All measurements are taken with the machine in a vertical position, with the tyres normally inflated without a rider. Fuel: refer rule E4-1 and E4-2. Titanium: The use of titanium in machines is forbidden (except engine parts). Carbon Fibre: The use of carbon fibre is authorised for other than main frame structural or fork, wheels. Ceramic Materials: The use of ceramic parts is forbidden. The use of ceramic coated parts is authorised. Dangerous Construction The Steward of the meeting many exclude any vehicle the construction of which he deems to be dangerous and will give full effect to these Regulations by requiring the Vehicle Checker to check vehicle prior to its taking part in a competition. Unnecessary equipment (such as inter-alia lamps, horns, speedometer, exhaust pipes directed so as to raise dust, spikes or other attachments to tyres) may be deemed dangerous. The direction of all officials must be strictly obeyed. Impounding a Motor-Cycle: refer rule E1-2 and E1-6.
2010 ELECTRONIC RULEBOOK