cj7hawk wrote:Your misunderstanding here is there's no such thing as a 2hp engine, and there's no engine around that can produce 2hp across it's entire band. That's just not possible. The RPM of the engine is the primary contributor to HP. This is key to understanding what I'm saying.
That's why the Honda is listed as a 2.5 hp motor - and I carefully said "over 1hp across it's entire power band". It actually peaks at two. It'll run all day long at a few thousand RPM.
cj7hawk wrote:and there's a real chance that a 50cc engine will give a result under 200W.
Only if the person doing the gearing is an idiot. Which is quite possible in the cases above.
cj7hawk wrote:On top of that, DoT, who make the rules, have stated that a reasonable test for a bicycle is that, if it runs in two directions on a straight level path, and the average top speed is calculated, and it's around 25kph ( but not exceeding 30 kph ) then that is a reasonable test for real world conditions... And it's so very easy to do as well.
Don't have a problem with this measure.