In an assisted pedaling e-Bike the electric motor helps pedaling, with a degree of assistance that can be adjusted to suit the user. But for this type of e-Bikes to be legally considered as a conventional bicycle (European Directive 2002/24 / EC and ISO 4210: 1996) and does not need insurance or card, it must meet some basic requirements:
Provide assistance only when pedaling. That is, the electric motor does not work if you do not pedal.
That electrical assistance is stopped at a speed of 25 km / h.
The motor does not exceed 250 W of power
Do not exceed 25 km / h of assisted speed
Therefore, the electric bicycle with built-in motor, to be considered as such, cannot exceed 25 km / hour of maximum speed with pedaling assistance (by law, a tolerance of 10% is allowed, which means that in Actually the engine mount will be cut before 27.5 km / h). For which it must incorporate a mechanism to stop the assistance of the engine to reach this speed.
If your e-Bike can exceed 25 km / h without disconnecting the pedaling assistance, it automatically becomes a moped and requires registration, secure it and have a driving license to be able to drive with it on public roads.
Of course, with an assisted pedaling e-Bike you can overcome that speed, but only with the force of the driver’s legs, or with the help of gravity or wind. Of course, in the city it is not necessary to go much faster. For example, the average speed of circulation in Madrid is 24 km / h, which is reduced to 9 km / h in the center and does not vary just in other cities. That is, the maximum speed of your electric bike will not be any inconvenience for city trips.