Factor four was left in the definition but the following preamble was added
to the Regulation: “The limitation to ‘four’ of the ratio of auxiliary propulsion power and
actual pedal power for cycles designed to pedal set out in Annex XIX should be subject
to further scientific research and assessment. Upon availability of scientific data and statistics
on vehicles placed on the market, the ratio ‘four’ referred to above may be revisited
in a future revision of this Regulation.”
It's fairly complicated stuff, even if it is 'easy to read'. We're pretty screwed in the US, because nothing is defined. Buyer Beware. Everything over there is defined and, gee, overly so. You're good to go with 250w and 25 kph, I guess. At least we generally get more than that, maybe 750 watts and 30 kph. Plus we can use a throttle. The question is what to do once you go over whatever the limit is for a basic ebike with minimal requirements. How many grades before you get to Harley-ville.
We have stuff people want to sell, that fits nowhere. People say ebikes are bikes, but it's really up to the state. Where I live, Utah, the limits are 20 mph and 75 pounds. That doesn't cover much of the new stuff. Genze has an electric scooter that weighs 200 pounds and goes 30 mph. Organic Transport has the Elf. It's way too heavy to be an ebike in Utah. Let's not get into the Stealth and so on. The problem is, if you aren't an ebike, you are a motorcycle, with fees and licenses. The Euro Moped category goes to 4000w. That's where a lot of useful 'road' vehicles could end up, like the Genze scooter. But I assume you can't go pick up a Moped and drive off into the sunset 'like a bike'.
So my question is: With all these categories of electric bikes, what happens as you get faster and heavier? Can you get a license that matches the bikes? How much do the fees and other requirements go up?