Originally Posted by
Gardenburn
No.
Unless, by "electric" you mean that it has a generator?!!😂
You can clearly see the hub motor in the back wheel.
The motorized kit that some have referred to is not ideal.
It is 2 stroke. A 4 stroke would be much better.
It is very noisy. Anyone putting one on a bike should look for a better exhaust, probably from a motorbike.
It has no gears, and is like riding a motorbike in 2nd gear all the time. To go at a decent speed, the motor needs to rev hard, which no doubt shortens the engine life. It would be ideal to have a smaller rear sprocket, so it can go faster without revving too hard. Then the rider should start with pedal power only, to avoid killing the clutch. The motor is then started by dropping the clutch.
Four stroke wouldn't be better. It would probably be quieter, but a four stroke requires at minimum a valvetrain and oil circulation, and has less potential to make power. It'd be an increase in expense and complication.
The real problem of these 2 stroke kits is that the quality control is poor. The design heritage is very old, directly descended from a product of the kharkov bike factory in USSR, the only thing the chinese have done to it is switch from rotary port to piston port to try and save some money, then increase from 45 to 66cc using a jug with absolutely terrible ports. The new bigger piston has made it unbalanced, so the revs are limited by it vibrating itself to death, which is then helped along by the cheese grade bolts and almost totally wrong ignition timing. Hell, they don't even clean casting flash off and just tell you to run a couple tanks at 16:1 oil ratio...
It's possible with knowledge and time to get them to perform much better, not even really spending any money beyond grinding stones for your dremel and a new CDI. Correct the flaws and they have a nice wide power band and a lot of low end torque without much vibration.
But since these china motors got popular in america amongst the illiterate DUI brigade and intellectually subnormal teenagers, trying to find good info on them has become very difficult for beginners. The market has been flooded with people selling purple anodized cylinder heads, banana shaped exhaust pipes and god knows what else. The only performance improvement of any of that crap offers is weight saving your wallet.