Some electric-wheel makers offer accelerator-gas functions for their models.
Here is an offer of ekolo.cz eco-wheels, on which you can ride even without pedaling, using a gas lever or a pushbutton on the handlebars. How does electrical assistance work without pedaling? The ECU is coupled with a speed controller that allows you to ride on an electric pole without pedaling.
The aforementioned gearbox can be retrofitted on the customer's request with the "gas" or "accelerator" function so that it can be driven on a pedal without pedaling. We consider this adjustment an optional accessory and install it for an additional charge of CZK 499.