Scooters provide easy, quick transportation around town and some have engines fast and strong enough to ride on the highway safely. However, taking a long-distance trip on a scooter can be fairly impractical, given that you can't carry much luggage, you're exposed to the elements for a long ride, and some roads or distances may be too far on just a scooter. Many owners use trailers to haul scooters such distances so they can then use them at a scooter rally, a vacation, or for short-distance travelling while staying at a campsite, for example. Making a scooter trailer can be done for very little cost and with a little bit of construction.
Purchase a mini trailer, such as the model provided by Harbor Freight (they don't come with a trailer bed, just the frame). Hitch it to your car and drive home or have the trailer delivered to your location. Assemble the trailer per the included instruction using a socket wrench and sockets if it is delivered and needs assembly.
Measure the distance across the metal frame of the mini-trailer. Take notes of the length and width of the area. Purchase sufficient plywood to cover the top of the trailer bed frame per your measurements of the trailer (size will vary depending on the trailer model). Use a power drill to drill holes in the edge of the plywood so it can be bolted to the trailer frame using a crescent wrench, socket wrench and basic nuts and bolts hardware.
Use the measuring tape to determine the distance from the front of the trailer to the back edge. Cut two planks of 2-by-4-inch wood the same length, equal to that distance, using a power saw. Nail with a hammer or bolt the planks to the plywood on the trailer bed, placing them down the middle of the trailer bed parallel to the directions of the trailer wheels. Keep a space or gap between the two planks of at least 3 1/2 inches across (i.e., not right next to each other touching), or wide enough to accommodate the width of the tires of your scooter. These planks form a channel for the scooter tires.
Cut another piece of 2-by-4-inch wood long enough to cover the width between one plank side and the other of the first two planks, and place it perpendicular to the first two planks at the front of the trailer bed. Bolt or nail it to the two planks already installed. This will be the stop for the front scooter tire when it is placed on the trailer. Pre-drill a hole at each of the four corners of the trailer bed plywood slightly smaller than the screw threads of the hooks. Insert the hooks, one at each corner of the trailer bed.
Once the trailer is hitched to a car and the electrical signals are plugged in to the car, put the scooter onto the trailer bed. Use a wood board or lift it onto the trailer. Line up the scooter wheels between the two long planks and move it forward until the scooter stops at the perpendicular block. Tie motorcycle ties to the handles and hook them to the front two hooks on the trailer bed. Tighten them down so the scooter front suspension is at it's lowest point. Hook two more motorcycle ties to the back of the scooter, and to the two rear hooks in the trailer bed, and tighten those as well. The scooter trailer is ready to transport.
Any trailer being used on public roads needs to have a number plate. You can get a permanent trailer plate and tags at your local department of motor vehicles for a small fee.
Make sure the scooter motorcycle ties are as tight as possible. Any slack, and the scooter can fall over or bounce while you are transporting it on the open road.