My heater at home is 2000W.
I see 200W as an irrelevant law as its not stated in cc.
In a city (Sydney) thats promoting bicycle riding, it would be hypocritical
not to allow engines on bikes, as its the next logical step for many people.
(injured, older, lazy...)
One member here told me he got pulled over by the police,
he said he had a 35 cc Zbox motor showed him the below RTA printout,
and the Zbox spec.
http://www.rta.nsw.gov.au/registration/otherinformation/scootersminibikes.html?rlid=6
He was told he'd have to walk the bike the 20km home, and take
it to the RTA for an inspection.
No ticket, No fine.
You can imagine how far he walked the bike...
I regularly see police cars, who would be able to see me.
So far I've not been stopped.
I now carry the above paper-work with me whenever I ride.
Seems like the only defence, against moronic laws is to be aware
of what they are.
For warned is for armed.