Yes but they are noisy, not very efficient and vibrate like crazy. One of my sons built a couple and they ended up at a garage sale. Electrics are much superior
I agree, two strokes are definitely going in the wrong direction, towards the past. There's no torque, have to pedal it up to at least 5mph before you let out the clutch or it will bog or you'll burn your clutch. Here in the big city, where I'll spend just as much time sitting still at the stoplight as I do motoring, holding in the clutch at stoplights gets old fast. The fumes alone are enough to make me not want to deal with it. I never ran a break-even analysis, but when UK starts his thread about the "Wonton Whizzers" I'll calculate how many miles you can go, buying gas and oil, before you've payed the extra cost of the electric rig.
I can go 60 on my mountain bike now, even without any engine or motor, .... just have to start at the top of the right mountain.