The cheater MX85 argument. I might be changing my mind.

[Drew]

No don't think so, am I missing something?, it would not be the first time.



I was shocked that I had overlooked/forgotten the "derived from motorcycles" bit because I have one of these tucked away. Water cooled 150cc CVT 2.5x17" front rim 3.5x16" rear rim, could argue its a motorcycle but it is sold as a scooter.

Was watching Sketchys project with interest as this could possibly be converted to 100 and supercharged and the water cooling would be a big plus. Or if the rules change to allow MX85's and 200cc 2 valvers, which this could become, whatever, this might be an interesting Bucket.

I was tossing up whether to use the complete GTR rolling chassis or to fit the engine/transmission into a MC21 frame for something different. Weight might be a deciding factor on which frame to use.

And there are a few 2T 50cc CVT scooter units under the bench at work just in case we feel the urge to make some sort of hybrid F5 penny farthing thing.

A scooter is a motorcycle. Two wheels and a motor. It fits the definitions I can find with a quick google. They're legit.

The injected smokers have to be the best option to my mind. Even with the fucking around to get them down to 100cc. Mind, there is the almost fuel injection that strongly resemble a carb. Essentially just a main jet with pressure behind it.

Greys Kawasaki is an AR80 a roadbike so legal.

Pretty sure Greg said it was undoubtedly legal.

[TZ350]

- as legally, there's no difference between a scooter and a motorcycle. Both powered two wheelers....

Is this true? I am sure MOT may think so but what is the consensus on the Ground, are Scooter engines/transmissions Ok for Buckets?

[Drew]

Is this true? I am sure MOT may think so but what is the consensus on the Ground, are Scooter engines/transmissions Ok for Buckets?

http://en.wikipedia.org/wiki/Legal_d..._of_motorcycle

http://www.merriam-webster.com/dictionary/motorcycle

[Yow Ling]

http://en.wikipedia.org/wiki/Legal_d..._of_motorcycle

http://www.merriam-webster.com/dictionary/motorcycle

Since when did the rules and MNZ directives come from Wikipedia or webster dictionary
What does webster dictionary say what f4 is or what a bucket is.

[Grumph]

Since when did the rules and MNZ directives come from Wikipedia or webster dictionary
What does webster dictionary say what f4 is or what a bucket is.

well, MNZ would undoubtedly kick it upstairs for a decision....somewhere in the FIM rules there's a definition but I can't be arsed looking.
I suspect it comes down to "powered 2 wheeler" anyway.

can i take it, Mike, we're not going to see gav on the scooter you bought ?

[Drew]

Since when did the rules and MNZ directives come from Wikipedia or webster dictionary
What does webster dictionary say what f4 is or what a bucket is.

F4 is not defined in a dictionary. The definition thereof would be found in the MNZ rules and regulations.

But since EVERY definition of a motorcycle boils down to the same thing, scooters are legal to be entered in competitive motorcycle racing.

[F5 Dave]

AR80 ....... there are air cooled and H2O versions, the H2O version looks very much like an early MX80 engine to me.

Attachment 297118

Yeah apparently they can fit kx barrels. The RG50 has much in common with the old RM80 I think.

[underpowered80]

Greys Kawasaki is an AR80 a roadbike so legal.

That's correct Mike.1999 ninja ar80.After an extensive search ,we found our motor was built at a factory in the Philipines .Only 200 of these motors were built and fitted for testing.they were discontinued as they had a weakness in the engine cases. We were warned by Grumph to rebuild our bottom end,didnt listen,completely destroyed motor.We cant get parts for this model .So we sold our RS125GP frame. I am now looking at fitting or adapting kx80 engine cases.If successful we will fit motor in go cart for the grandkids.

ROBIN

[F5 Dave]

Well I would have never thought of contesting it butMike Iis rright
Bloody phone sorry

Anyway I think there would be no one who would contest the addition of scooter motor to the rules.

[husaberg]

Yeah apparently they can fit kx barrels. The RG50 has much in common with the old RM80 I think.

As is the MB50/100 early cr80 but like the Ar80 and the MB100 are fully legal, cause they were sold as commuter bikes.

[Ocean1]

And there are a few 2T 50cc CVT scooter units under the bench at work just in case we feel the urge to make some sort of hybrid F5 penny farthing thing.

Attachment 297117

Which reminds me, all you 2T freaks...

An expansion chamber resonates at a frequency sympathetic with a reasonably wideish range of engine revs, yes?

Only, when I were a nipper I used to make things like this: http://www.hobbyking.com/mobile/view...dproduct=34247

So, if you stuck a reed valve somewhere up front of an expansion chamber and dumped fuel in near the back would you generate thrust?






Aaand 4Ts are allowed turbochargers if under 100cc?

Afterburners?

[F5 Dave]

As is the MB50/100 early cr80 but like the Ar80 and the MB100 are fully legal, cause they were sold as commuter bikes.

No question. TZR 250 3XV share same case as the TZ bar kick er. But set up as a road bike.

[F5 Dave]

Hmm 'might' have some noise issues

[cotswold]

This has got me a bit keen, if I threw one in my Aprilia or the RS chassis and was happy not to score points would I be able to ride it in whichever grade I was quick enough to be in?

[jasonu]

This has got me a bit keen, if I threw one in my Aprilia or the RS chassis and was happy not to score points would I be able to ride it in whichever grade I was quick enough to be in?

I for one am dead against this sort of behavior. You can potentially and probably will have an effect on the outcome of a points race and thus the amount of points scored by championship contenders even if you don't actually get points yourself. Also this opens the door for others with marginal or outright not bucket legal bikes.