Solo 720 Electra 1973 21km/h!!!

Electric moped from 1973 Electric moped I bought from a brother of a colleague. Came with dutch papers for "snorfiets" so no helmet required. Hooks up to a full automatic battery loader of an electric wheelchair. I've driven it more than 25km and still the batteries were full! You musn't be in a hurry, it does 21km/h so quick bikers will pass you...

Anybody has a larger electric motor than the one I have?
It now has a Bosch 24Volt 750Watt motor, but a motor of a golf-kart would be nice (2.0kW@48Volt)