New rules for electric bikes will start to come into effect on May 1.

If you can do more than 25 kilometers an hour with assisted pedaling, your bike will be treated like an electric scooter and you will need number plates and a driving licence. 

Above 45 kilometers an hour, you will be treated like a motorbike. 

And from July, helmets will be compulsory for drivers of both these categories.

About 50,000 electric bikers were sold last year in Switzerland.