If it works without the Teebike wheel, it can also work with it ! The wheel doesn’t change geometry or security of your bike. Nonetheless, it is very important that you check the function of your brakes on a regular basis.
The total weight carried by the bike must not exceed 150kg / 330 lb.
Good to know : just like for any electric bicycle, the wheel’s autonomy will vary according to the weight carried and the level of electric assistance chosen. With a child seat on the bike, it will therefore be less powerful.