Just a heads up for anyone planning on racing with AMCC.
They WILL be enforcing the rules regarding race numbers from NOW onwards.
That means that the size of the numbers must be correct. The background must be correct size and colour for your MAIN race class.
Clubmans racers need to use the colors and sizes required for the class your bike would normally race in.

Number digits to be of a BOLD type, and as large as practicable – 140mm MINIMUM height, and must be separate (i.e. not overlapping)
Numbers containing more than two digits will NOT be acceptable for Road Race National Championship Events. Numbers 1-10 will be reserved for Competitors finishing in that position in that Class in the previous years Championship – these allocations will be made by MNZ’s Office each year.
Placement: Fairing, front of fairing one number board facing forward.
Numbers may also be placed on both sides of the fairing
Rear Tailpiece; minimum of one number on rear seat tailpiece.
Number Boards
Size: Minimum width 285mm, minimum height 235mm, oval or
rectangular in shape.
Placement: 3 number boards to be affixed or placed upon the motorcycle,
in colours required for the class as follows:
Front: Facing forwards, with not more than 30 degrees forwards from
vertical.
Sides: One either side of the motorcycle in a position clearly visible
when the rider (and passenger for sidecars) is seated in their
usual riding position.
In a place on separate boards, a space of equivalent size and shape can be on
the bodywork or streamlining.
Figures all classes:
Figures must be clearly legible and both numbers and backgrounds must be in a non-gloss finish. A plain form of figure shall be used.
Colours:
125cc & 150 S/S White background, black figures
250 Production Orange background black figures
Superlite Black background, white figures
600 SuperSport Yellow background, black figures
Superbike White background, black figures
Sidecars – Formula One White background, black figures
Sidecars – Formula Two Yellow background, black figures
Pro Twin Orange background, black figures
600 Superstock Black background yellow figures
1000 Superstock Red background yellow figures
Miniature Road Racing:
Up to 50cc White background, black figures
Open Black background, white figures
Sidecars Black background, white figures
Classic and Post Classic:
Up to 250cc Dark Green background, white figures
Up to 350cc Blue background, white figures
Up to 500cc Yellow background, black figures
Open Red background, white figures
Pre 89
Formula One White Background, black figures
Formula Two Yellow background, black figures
Formula Three Black background, white figures.


http://www.mnz.co.nz/docs/default-so...l.pdf?sfvrsn=2