Can you ride a 150cc chopper on the roads in Ontario?
Unfortunately, you cannot ride a 150cc chopper on the roads in Ontario without properly registering and licensing it. You may possibly register it if you declare it as a homebuilt chopper and you are also obligated to put signals and a brake light on the back of the bike to make it "street legal".
i hope it helps,
To ride on private land you need, a dirt bike. To ride on public land you need a plate and 3rd party liability insurance. (State Farm is the only one I can find). You are allowed to ride on roads if the local gov't has passed by-laws allowing it. http://www.e-laws.gov.on.ca/html/statutes/english/elaws_statutes_90o04_e.htm. Have a read.
Paved roads made cars for example more fuel efficient since they use less power to go though something flat rather than something like dirt and rocks. Think of it when you ride a bicycle would you prefer to ride your bicycle on the grass, dirt and rocks or in the paved roads? well I'm hoping you said paved roads because in the paved roads you would use less energy.