The rules are the rules

**Drew** · 19th December 2012, 15:07

Originally Posted by slowpoke

As an example I don't like the OEM slipper clutch in my GSXR. I checked it over the other week, getting ready for heading down south, and thought how easy would it be to modify the ramps for a more progressive action? Another high profile superbike I know of had a close ratio gearbox installed. So the tech inspection has to be a shitload more than just ripping the head off and after Ozzy (who is a GSXR guru) refreshed my bike last year I know what we are talking about in both labour time and cost.

You've been allowed to upgrade slipper clutches forever mate, what's the boggle?

Or are you gonna be the one guy running superstock this year?

**slowpoke** · 19th December 2012, 16:22

Originally Posted by Drew

You've been allowed to upgrade slipper clutches forever mate, what's the boggle?

Or are you gonna be the one guy running superstock this year?

Per MNZ Superbike rules:

3.9 The following may be replaced with parts not manufactured by the manufacturer of the machine:

o) Clutch plates and springs

So the options are limited. Yeah you can experiment with different spring/plate combo's (has yoshi spring/plates at mo) but it's never gonna be as silky smooth as say the Ferraci unit in your old 749R. Not a biggie but someone with an illegally modified clutch would definitely have an advantage in stability. It was just an example anyway, and prolly a bad one at that.

Nah, just Clubbies for me mate: great Mexican hospitality at best tracks in NZ, and hopefully learn a bit watching the big boys (Deano!) show how it's really done. I'm normally lucky to make 3 weekend's racing in 6 months so 3 weekends back to back is an opportunity too good to pass up.

**Deano** · 19th December 2012, 16:38

Originally Posted by slowpoke

hopefully learn a bit watching the big boys (Deano!) show how it's really done. I'm normally lucky to make 3 weekend's racing in 6 months so 3 weekends back to back is an opportunity too good to pass up.

Hey thanks Spud but pro twins is hardly the big time LOL

**Skunk** · 19th December 2012, 17:11

Originally Posted by Drew

See, we interpret it different.

With rules there is meant to be no interpretation. It is as it is written. If the manufacturer doesn't put two inlet cams in then neither can you.

**Tony.OK** · 19th December 2012, 17:45

Originally Posted by Drew

You've been allowed to upgrade slipper clutches forever mate, what's the boggle?

Back to school for you bro!

**Kiwi Graham:Me** · 19th December 2012, 19:06

All I can say is guys, read the rules pertaining to your bike and class and make sure you are within them.
From a simple point of number size and position to the noise it makes and the more complicated aspect of internal mods.

The Nationals in particular are going to be a very different animal this season from both a Machine Examination point of view to a parc ferme tech inspection point of view.

As Skunk has pointed out there will be no interpretation of a rule, it will be as per the rule, if you have any doubts about a particular rule ask now rather than risk it later.

All I an say is go through them line by line and satisfy yourself your ok.

Remember the reason for this is to make it fair for you, me and the guy sat next to you on the grid, any advantage should be down to ability and not illegality.

**Mental Trousers** · 19th December 2012, 20:20

Appendix A - Superstock 1000 & 600, 5th paragraph

The appearance from both front, rear and the profile of Superstock motorcycles must (except when otherwise stated) conform to the homologated shape (as originally produced by the manufacturer). All parts and functions must remain as per OEM specifications unless stated otherwise!

Appendix C - Superbike, 3rd paragraph

The appearance from front, rear and the profile of Superbike motorcycles must (except when otherwise stated) conform to the original shape (as originally produced by the manufacturer). All parts and functions must remain as per OEM specifications unless stated otherwise!

Appendix F - Pro Twin, 3rd paragraph

All items not mentioned in the following articles must remain as originally produced by the manufacturers, remain fitted and operational for that homologated model.

Appendix G - Supersport, 4th paragraph

The appearance from both front, rear and the side profile of Supersport motorcycles must (except when otherwise stated) conform to the homologated shape (as originally produced by the manufacturer). All parts and functions must remain as per OEM specifications unless stated otherwise!

Appendix I - 250 Production, 5th paragraph

All items not mentioned in the following articles must remain as originally produced by the manufacturer, remain fitted and operational for that homologated model.
The parts and service manuals for the homologated models will be used as reference to confirm standard specifications.

These are the most important bits if you ask me. Basically, in those classes if it's not specifically allowed then it's illegal.