250 production class rules?

[ellipsis]

here is the homologation list for proddy racing

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

...can't wait to tell the next MV Augusta rider I come across that MNZ consider their bike to be worthy of being a Triumph...

[Pumba]

Need to get some new slicks for the RG, trying to find some used 125gp tyres. The Pirelli tyres on it are crap.

What class are you going to race the RG in? Welcome to be corrected but I didn't think slicks were allowed in the streetstock class.

[Bert]

What class are you going to race the RG in? Welcome to be corrected but I didn't think slicks were allowed in the streetstock class.

I think your incorrect Pumba. Once streetstock a were dropped in fav of 250production south islanders start allowing slicks. We were a little slow on the north adopting this. But all fine now to use them.
Though I better check our sup rules for this year covers this before committing..

[Pumba]

I think your incorrect Pumba...

All good. Would have hated him to go to that effort to do something that was not allowed

[quickbuck]

I think your incorrect Pumba. Once streetstock a were dropped in fav of 250production south islanders start allowing slicks. We were a little slow on the north adopting this. But all fine now to use them.
Though I better check our sup rules for this year covers this before committing..

Almost... South Islanders made up the "Development" Formula.
It is as below, except the link to AMCC doesn't work but you get the jist of it....Development Formula Rules

Development Class is open to any F4 Miniature Road Race bikes, 250cc 2 cylinder 4 stroke (including Hyosung cup machines) and up to 150cc 2 and 4 stroke street type road registrable mass production machines of any make sold or on sale in New Zealand, in standard specification.


The minimum age limit for Development Class racing shall be:
1.13 years for 150cc 2 and 4 stroke,
2.15 years for 250cc 2 cylinder 4 stroke unless the competitor has a dispensation


Development class shall be a restricted class of road racing, under the following conditions:
1.The maximum 2 stroke engine capacity size is 150cc; re boring to maximum over size of 0.50mm is allowed.
2.The maximum 4 stroke engine capacity size is 250cc up to 2 cylinders maximum over size of 0.50mm is allowed.
3.The motorcycles are not to be 125GP bikes.
4.Where the rider does not have a current driving licence, that rider shall receive motorcycle riding lessons and a minimum of one full days coaching of road racing with an approved coach prior to racing.
5.All junior competitors (17 years and younger) in the road race event are to wear a high visibility vest to be worn over their leathers for the first 10 events at which they compete. Proof of these events will be from entries in their logbook.


MNZ Classes Eligible
1.F4 Miniature Road racing as per MNZ Rules chapter - 24
2.250 Production as per MNZ Rules Appendix - I; with the exception of the tyre rule and homologation


Other Classes Eligible
1.Hyosung Cup Class (Regulations covering these are on the Auckland Motorcycle Club website )
2.All other machines (150cc 2 and 4 stroke street type road registrable mass production machines of any make sold or on sale in New Zealand, in standard specification) must fit the following requirements:


Preparation of Motorcycle
1.All items not mentioned in the following must remain as originally produced by the manufacturer.
2.All motorcycles are to be prepared in accordance with Chapter 10. In instances of wear and tear damage or failure, parts may be replaced but must not derive a performance advantage.
3.Fuel refer to rule 10.17.2
4.All motorcycles must display the manufacturer's vehicle identification number on the frame. Additional seat brackets may be added but none may be removed. Bolt on accessories to the sub frame may be removed.


Modifications or Removal Allowed
1.Footrests/foot controls must bolt on the frame in the original position and be same height and position as standard. Solid footrest are allowed
2.Handle bars height and angle of bars must remain standard
3.Hand controls: clutch and brake levers can be modified.
4.Brake lines and brake pads can be modified.
5.The speedo drive may be removed and replaced with a spacer
6.Fairing, front guard, windscreen and bodywork must retain the original shape as produced by the manufacturer, but these parts can be replaced with an exact cosmetic copy.
7.Carbon fibre is restricted to the reinforcing parts only; carbon fibre cannot be used elsewhere. Small plastic cones/knobs may be added to the machine to minimise accident damage.
8.All exposed edges must be rounded.
9.Seat and seat base and associated bodywork may be replaced with parts of similar appearance as the original shape; the top portion of the seat may be modified to create a solo seat.
10.Fuel lines may be replaced Quick connectors or dry break quick connectors may be used. Fuel line vents may be replaced fuel filter may be fitted.
11.Base and head gasket with standard parts, but must retain original thickness.
12.Carburettor jetting / fuel injection tuning is allowed.
13.External gearing and chains may be changed.
14.Suspension springing and oil may be changed.
15.Fasteners may be drilled for safety wire only. Fairing fasteners may be changed for quick disconnect type. Titanium/aluminium fasteners may not be used.
16.All 4 stroke; standard headers aftermarket mufflers allowed.
17.Rims may be changed, but must be production bike rims. No aftermarket or GP rims allowed.
18.Motorcycle must be equipped with a functional ignition kill switch or button mounted on the handlebars that is capable of stopping a running engine.
19.Where breather or overflow pipes are fitted they must discharge via existing outlets into a catch tank. The original closed system can be retained; no direct atmospheric emission is permitted.
20.Instruments,horn, brackets and associated cables can be removed.
21.Toolbox can be removed.
22.Radiator fan and wiring can be removed.
23.Rear guard / Chain Guard can be removed.


The following items must be removed
1.Passenger footrests / grab rails unbolted only.
2.Number plate / Number plate bracket.
3.Safety bars, centre and side stands (fixed/welded brackets must remain).
4.Headlamp, rear lamp, blinkers.


Items not allowed
1.Data logging not allowed
2.The fitment of aftermarket traction control units is not allowed.
3.Rear shock and all linkages must remain standard modifications not allowed.
4.Tyre warmers are not allowed.
5.Frame Body and rear sub frame modifications not allowed.
6.Emulator valves or modifications to damping mechanisms are not allowed.
7.Aftermarket expansion chambers are not allowed.
8.The inner and outer front fork stanchion must remain standard.


The choice of tyre is optional:
1.Must be commercially available in New Zealand.
2.Be worn no more than the tread depth indicators.
3.In the event of the meeting being declared wet, a treaded tyre MUST be used. Full wet or otherwise.

[budda]

I had thought that the single cylinder bikes (CBR250) were eligible also, but perhaps not?
On paper they might be competitive due to lower weight, but in reality that is unlikely.

Sorry guys, been away for a coupla months ...... the rules allow any single or twin cylinder bike that meets the rest of the criteria AND is homologated by its Importer to compete in this class

[Aeromo]

All good. Would have hated him to go to that effort to do something that was not allowed

I did get abit confused as I read in the rules (must have been old rules) tyres off the shelf road tyres. But the Supplementary rules for the nzsbk rounds said tyres were open. I got some now. A 125gp front and a continental rear.