Originally Posted by twist86
Let me start by saying that I have scoured the forums and the web trying to find answers to my questions, but have only found a lot of vague references. So, I'm not posting these questions without having tried to find the answers first.
First off, what is the "unofficial" towing capacity of a 451? I know officially it is "0," but a lot of people do it anyways. I seemed to have seen references to about 600 lbs. Is that accurate?
Second, which wiring harness would I need for wiring my smart so that I could connect it to a trailer? etrailer sells a harness but doesn't list the model. I'm trying to get everything from Amazon (including the hitch) so that I don't have to pay for shipping. I will do the installation myself (with the assistance of my auto-savvy father). Also, where can I find the wiring diagram? I found a link to a PDF in an old post, but the link didn't work anymore.
Third, I'm looking for opinions on this trailer as far as pulling it with a smart: Wheelchair & Scooter Trailers
. It will be loaded with up to 325 lbs. I'll be using it first to transport an ice cream cart (I'm starting an Italian Ice business and trading in my car for something that can haul a cart isn't financially smart right now given that I owe about what my car is worth due to depreciation) and later it will probably be used to transport a wheelchair or scooter (muscular dystrophy in the family). Does anyone see any issues with this trailer? Any feedback would be appreciated. I'd also be open to suggestions for other trailers, but this is what I found that would fit my needs.
Any help would be greatly appreciated.
Call a U-haul dealer and ask them about the cost of the towbar they rent/sell for the Smart. Back a few years ago they did offer a towable trailer and hitch for the Smart. I never went for the rig, so I can only offer you what I discovered, FWIW.
If they rent you the rig, they will also do the wiring and connector for you. From the top of my head, the number 75-100 pounds downforce on the tow bar and a max load on this trailer axle of 750# is about it. Your results may vary.
If your trailer comes with brakes, the control box will also need adjusting so it brakes the trailer a bit harder than the car brakes haul down the car, or else the trailer may try to pass your car during heavy braking. One of those tiny folding trailers would be OK.
Keep in mind that a trailer this small may not have brakes, so you will have to change your driving style drastically (SLOW DOWN!). If U-haul offers an E-brake for your trailer, you will need a control box under the dash of your car, using a different wiring harness.
IMPORTANT: Balance the load over the trailer axle so that 10% of the load weight pushes down on the tow bar. Ask U-haul to check this for you.