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
Appendix A MOMS
Forum whore
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
Appendix A MOMS
My neighbours diary says I have boundary issues
L-Plate Rider
That's OK guys I had someone try and tell me you can't start of with an engine outside the class cc rating and mod to comply so thanks for clearing that up for me
elbow down dreamer
On the topic of capacity and older style engines (such as 2 valve 4ts), it's worth looking at the Australian NSW bucket racing rules as they've done just this.
They split it into motolite, commuterlite and superlite. Motolite being the more modified class which is open rules on frames etc. Superlite is pretty much stock bike racing. I don't think we need 3 classes but there is definitely scope for 2 classes which are raced on the same grid as we do currently. That is, F4 and F5 grids but with two sub classes.
I really like this set of rules. It's super simple and not a bunch of crammed together sentences with poor grammar pretending to be rules.
CLICK HERE FOR FULL RULES
2014 Motolite Rules
Classes: One class combining:
- 111cc Air-cooled single cylinder 2 stroke
- 159cc Air-cooled 2 valve twin cylinder 4 stroke
- 175cc Air-cooled 3, 4 or 5 valve 1cyl. 4 stroke
- 190cc Air-cooled Horizontal 4 Valve 4 speed
gearbox (Laydown Motor)
- 230cc Air-cooled 2 valve single cylinder 4 stroke
- 85cc Water-cooled 2 stroke
- 159cc Water-cooled 4 valve single cyl. 4 stroke
- 185cc Water-cooled 2 valve single cyl 4 stroke
Unknown Disorder
Was in the middle of a long winded response to this. Not going to bother.Originally Posted by Skid Mark
Why don't you stop trolling and let the one guy that has an interest in the case sort it because you aren't helping his cause.
Stock is best
L-Plate Rider
If asking for clarification is trolling I'm sorry but I keep getting different answers to the same questions
L-Plate Rider
If asking for clarification on a rule is trolling IM SORRY but I keep getting different answers to the same questions
Hardcore Biker
Shit i don't know if my new bucket sidecar will fit the rules, better get some rule change proposals in before i finish it
Forum whore
There is a lot of verbage in the Aus rules. Would something like this work better? Original MNZ rules. Spaced out a bit and re numbered. Done away with some of the clutter and no talk of re bore allowances.
Road Racing – Miniature
24.2 - Engines must be derived from non-competition motorcycles.
24.3 - Motocross, Road Racing, Enduro and Go Kart motor and transmission parts are not permitted.
24.4 - 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.
24.5 - All engines must be normally aspirated except F4 4 stroke engines of less than 100cc capacity and F4 2 stroke engines of less than 70cc capacity, which may be turbo or supercharged.
24.6 - Solo motorcycles shall have two engine capacity classes: (these are maximum capacities)
F4
2 stroke 55-110cc
2 stroke 55-131cc air cooled
4 stroke 55-158cc
F5
2 stroke 0-53cc
4 stroke 0-104cc air cooled
24.7 - Side Cars ....
How hard would that be to understand?
I can't get onto the MNZ site to check the actual re bored capacities so some of the capacities may be wrong, its the uncluttered layout that I wanted to talk about.
Low personal B.M.E.P.
Don't believe everything you're told, check the internet....wait, have i got that the right way round ?
Learn to read the rules and interpret what they mean and what the intent was when they were drafted.
Given that the current shitstorm was caused by some prick asking MNZ for clarification, in future can I request that anyone who wants a rule clarified should go to a race meeting and ask the competitors before going into print and upsetting the bloody applecart.
Rob - simple and uncluttered is good. If you go like the Aussies, it's too complicated and performance equivalency questions come up. Their equivalency formula may well work on kart tracks but I have doubts about the big tracks.
Forum whore
I hear tennis is fun. Maybe you should try that...
Forum whore
Owners of already developed 100cc water cooled 2t bikes could say that. They are getting no benefits at all from the rule change proposals where as pretty much all other types of F4 engines are.
No8 Wire Extraordinaire
Mark. Some advice on another note. You only have ten posts, I suggest you abandon that name and start with another. There was a Skidmark with no space some years back. Do a search on some of his posts and see if you want to be confused for him. You don't.
Don't you look at my accountant.
He's the only one I've got.
L-Plate Rider
Someone told me old skid mark was an arse but I'm not him I promise and people get lots of shit wrong so that's OK as for all the other f4 what choice is there a four valve fxr and Italian syte 2 stroke or some 2 valve engines I got of noahs arch, at least there maybe 2 ,is this f4 or classics. ??
L-Plate Rider
A field 80 percent fxr s so it fxr racing with a few smart complying rocket surgeons on serious hybrids which is great and I'm all for guys that can do that and they will always be fast .all the bikes in the world and this is all we have ,choice please guys thanks
Forum whore
There is plenty of choice in the clubmans and F3 classes.
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