What class will this fit into?

[sidwyz]

A clear reason?

Direct from MNZ website

24 ROAD RACING - MINIATURE

24.1 The Miniature Road Racing class or `Bucket Racing’ as it is also known, shall be
deemed to include solo motorcycles and sidecars.

24.2 Motorcycles Technical:

24.2.1 Solo motorcycles shall have two engine capacity classes:
F4 2 stroke 55-100cc
2 stroke 55-125cc air cooled
4 stroke 55-150cc
F5 2 stroke 0-50cc
4 stroke 0-100cc air cooled

24.2.2 Sidecars shall have one engine capacity class:
2 stroke 55-100cc
2 stroke 55-125cc air cooled
4 stroke 55-150cc

24.2.3 The maximum capacity for rebored engines shall be:
F4 2 stroke 55-100cc - 104cc
2 stroke 55-125cc air cooled - 130.5cc
4 stroke 55-150cc – 158.09cc
F5 2 stroke 0-50cc - 53cc
4 stroke 0-100cc - 104cc

24.2.4 Engines must be derived from non-competition motorcycles. Motocross, Road Racing,
Enduro and Go Kart motors and transmission parts are not permitted. There shall be
no restriction on the make, type or design of carburettor, ignition, exhaust, piston,
cam, valve springs or cooling system except for class eligibility. All engines must be
normally aspirated except F4 4 stroke engines of less than 100cc capacity, which may
be turbo or supercharged.
F4 2 stroke engines over 104cc are restricted to carburation equivalent to a single
24mm carburettor, F5 4 stroke engines over 53cc are restricted to carburation
equivalent to a single 20mm carburettor.

Link http://www.mnz.co.nz/download/2010_M..._Miniature.pdf
Or http://www.mnz.co.nz/competitionrules.aspx

Definitive I Think.

[cave weta]

It may well hold its own on Kart Tracks but in the big picture it will be outgunned. No one here is trying to piss you off but simply point out the facts.......Like it or not you have a toy (fooken cool one at that) and unless it can foot it in F3 on a full size race circuit ya backs against the wall with this one!

A clear reason?

Direct from MNZ website


24.2.4 Engines must be derived from non-competition motorcycles. Motocross, Road Racing,
Enduro and Go Kart motors and transmission parts are not permitted. There shall be
no restriction on the make, type or design of carburettor, ignition, exhaust, piston,
cam, valve springs or cooling system except for class eligibility. All engines must be
normally aspirated except F4 4 stroke engines of less than 100cc capacity, which may
be turbo or supercharged.
F4 2 stroke engines over 104cc are restricted to carburation equivalent to a single
24mm carburettor, F5 4 stroke engines over 53cc are restricted to carburation
equivalent to a single 20mm carburettor.

Link http://www.mnz.co.nz/download/2010_M..._Miniature.pdf
Or http://www.mnz.co.nz/competitionrules.aspx

Definitive I Think.

EXCELLENT! - that is clear now- thanks guys. Im glad that its not two grand of my money that brought it in then! if the importer decides to drop the price further over the next few weeks to clear it- I will let you know!

[Tard]

If you haven't noticed its a competition pit bike.

As for "too bloody fast". umm you're in la la land buddy.

Yeah it's a "competition" pitbike 100% based on a real basic engine - all they're doing is providing a "competition-ready" bike for numpties who aren't mechanically minded...not that I'd know anyone like that :shifty:....or those who don't have the hook-ups :lol:

They'll never handle as well as a 'proper' bike...or put out 30hp either:not: Ok for tight kart tracks but get blitzed on the 'real' tracks : )

[Yow Ling]

Yeah it's a "competition" pitbike 100% based on a real basic engine - all they're doing is providing a "competition-ready" bike for numpties who aren't mechanically minded...not that I'd know anyone like that ....or those who don't have the hook-ups

They'll never handle as well as a 'proper' bike...or put out 30hp either Ok for tight kart tracks but get blitzed on the 'real' tracks : )

Your argument is a bit weak, for example a late model TZ250 is based on a tzr250 3xv you can race a tzr 250 in F3 but the TZ isnt eligible

If you are a numptie who needs to buy a "competition ready" bike , suzuki comes to the rescue with the FXR150, and for the more classic minded the Honda cb125t, Honda also build a range of current buckets CBR150, 125 so there is no need to bend the rules

[CHOPPA]

Your argument is a bit weak, for example a late model TZ250 is based on a tzr250 3xv you can race a tzr 250 in F3 but the TZ isnt eligible

If you are a numptie who needs to buy a "competition ready" bike , suzuki comes to the rescue with the FXR150, and for the more classic minded the Honda cb125t, Honda also build a range of current buckets CBR150, 125 so there is no need to bend the rules

Could you win on a stock CBR or FXR?

[Buckets4Me]

The importer tells me that the tech inspector from Mt Wellington club was invited to look at it and he has given it the green light. they are a strong performer that is suitable for racing, the FXR155 are not sold as a race bike though. they are a top of the line pitbike.

and who is the Tech Inspector ?

[gav]

Could you win on a stock CBR or FXR?

Mike? no, you? maybe. James Hoogie ran a pretty near stock slick shod FXR150 down here and was top 3.

[koba]

Could you win on a stock CBR or FXR?

Great question.

Not an easy answer, best way is to convince Fi5hy or Andrew to try it.

Otherwise the fragmented thoughts below may give some insight.

At Wellington:

Two years ago, yes.

Now, probably not.
But probably not far off. It doesn't take much to get one up to A-grade pace. Fi5hy and Andrew are fast on whatever they are on, When Andrew turned up he was punting a postie bike around the slipway in gumboots at some hideous pace.

Adrian's CBR isn't too far off stock and that's one of the faster ones in Wellington. What mods he has done have cost him very little.

Rich, Andrew A and Gavin V (maybe George too) are likely to have the only diesels you have seen with modifications past a pipe and carb. I know Hamish has had some more work done, but it doesn't look like it has resulted in much more power, Dunno what's up there.

Rick Ford won the GP in 2008 (maybe?) with a lightly tuned FXR, pipe and carb sort of thing.
The year later I came 9th on one that was a full trim roadbike, including old road tyres.

Just as much work is in making it race worthy with bits like clipons, decent rearsets that dont explode in the first crash, nylon, etc..


Bearing in mind the 'upgrade' carb for a bucket is usually something cheap and/or discarded from a bigger bike (250 singles etc)
The pipe just takes welding and cutting skills and is more about ground clearance than power on a lightly modded FXR.

Alot of mods on bikes don't actually make them any faster or easier to ride.
Engine power isn't the biggest factor in Kart track racing, skill and being able to ride the wheels of the fucker are.

[Yow Ling]

Could you win on a stock CBR or FXR?

Probably not, but thats no reason to let bikes that dont comply with the rules compete.

[richban]

Great question.

Not an easy answer, best way is to convince Fi5hy or Andrew to try it.

At Wellington:

Two years ago, yes.

Yeah the game has changed a bit.

I was looking through some old video from when we first got back into Kaitoki. My lap times have come down quite a bit. A lot to do with HP but also learning how to ride better. Still learning.

Still with maybe 3 hundie ish worth of mods you should have around 19hp at the wheel. Rebore 64mm cheap piston, PWK 30mm carb tuned proper. 500mm long header into an open muffler. Only problem then is keeping it on the track. Slicks front and rear. 2 fronts on standard rims. Then ride it really feckin hard. Some one should do a kit. Top end swap with exhaust. Now there is an idea.

[CHOPPA]

So is this engine set up not an option?

http://www.trademe.co.nz/motors/moto...-419331823.htm

[jasonu]

So is this engine set up not an option?

http://www.trademe.co.nz/motors/moto...-419331823.htm

If it is the same engine that is in the bike the original poster talks about then no.
It is like asking if a brand new KX100 motor that was never used in a 'competition' bike is legal.
As someone already pointed out there are heaps of totally legal options that won't take a lot of cash or effort to make competitive.

[CHOPPA]

If it is the same engine that is in the bike the original poster talks about then no.
It is like asking if a brand new KX100 motor that was never used in a 'competition' bike is legal.
As someone already pointed out there are heaps of totally legal options that won't take a lot of cash or effort to make competitive.

If there was a non competition bike that the KX100 motor came out in then I would be asking the same question.

What NEW engine would you say would be the best bet? Im thinking prob Loncin but they would fall in the same category as this engine as there are competition pit bikes that run Loncin engines.

I hear a lot of talk about FXR engines but all the ones I can find have done in excess of 30000ks when is a lot of revolutions on a small engine and before I was happy to race it id want to rebuild it, then to make it competitive it needs high comp piston, head mods, cams etc

[jasonu]

If there was a non competition bike that the KX100 motor came out in then I would be asking the same question.

Good question. If there was a (non competition) Kawasaki road bike produced with the EXACT motor, carb, airbox, ignition, CDI, wireing harness etc that comes in a KX100, how would that be viewed?
I totally doubt such a bike (KX100 commuter would be fun though) will be built but an interesting question all the same.

[richban]

So is this engine set up not an option?

http://www.trademe.co.nz/motors/moto...-419331823.htm

How about one of these. The 125 is legal. might have to give it a roof chop.