Originally Posted by Kevlarr
Just curious but why does someone in Oz care about EPA compliance?
Good question Kev
Getting Motorised bikes on the road in Oz has been an interest of mine for several years.
I think that 2-strokes have a lot to offer because of light weight. The lighter the vehicle weight, the less power (pedal + motor) to push around. You would think that the environmentalists would jump at it, but the bogey they bring up is dirty 2-strokes.
Sure, 4-strokes are also motorized bicycles and they are substantially illegal in Oz as well. 4-stroke bikes tend to be heavier and less likely to be readily operable as a pedal cycle.
In my view, the holy grail motorized bicycle is; fully operable as pedal cycle, 1.6 kW (2HP) motor, vehicle (bike + engine) weight less than 25 kg, 50 km/h (30mph) top speed under power.
At this stage, there is no bike-engine market potential in Oz until the road regulations are changed. So far as 2-strokes, I suspect that means clean strokes, although it would take 20+ years for dirty 2-strokes to ever be a problem in Oz.