1. First of all, the Troika is raised and the front is round. You can weld a long steel plate with a round hole behind the tricycle, and then you can process a long scooter.

2. Secondly, weld a round hole on the cart, then hang the cart behind the tricycle, put a lantern in the middle of the round hole.

3. Finally, raise the rear bucket of the electric tricycle and buy it as a square tube as wide as the big frame, then put it between the chassis and the rear bucket, and fix it with screws at the back.