[masklinn]

> 6kmh on just engine.

FWIW that makes it not a bicycle according to EN15194. EN15194 recommends a bicycle classification for vehicles which

* only ever provide assistance

* below 25km/h (with progressive cutoff)

* with maximum continuous rated power of 250W

Anything beyond that is classified as a moped.

Though EN15194 is a recommandation, member states are free to follow it or not.