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Beach/Trail wagon build

So I bought this edge marketing wagon and picked up a cooler rack. Then I realized it needs to be self propelled. Think you can put me a kit together? It has 13” tires. Trying to get fast walking speed out of it 3-4mph.

Yes, we can put a kit together for your beach wagon. If it will be used in the sand then both of the back wheels should be connected to a live axle so it has 2-wheel drive. When we first started making beach wagon kits some of our customers made 1-wheel drive beach wagons and they all just spun their wheels in the sand and did not go anywhere, so 2-wheel drive is needed for wagons that are used in the sand. 

Here is a link to all of our beach wagon kits so you can get an idea of what they are like:

So we can start designing your kit; how much weight will the wagon need to carry? And how many minutes of runtime will it need to have?

Ok. So can I purchase parts to make live axle from you? I wouldn’t think it would ever be more than 300 ish pounds including the weight of the wagon. And for when we go camping I would like it to be able to free wheel down hills and on flats to extend battery life. Also for when batteries do die, I could just pull it. The longer battery life the better for camping. It has rounded pull handle, not a T. how will brake handle attach? And if it’s only one wheel drive. Even if you help it get started it will just spin out and stop? It seems making it 2wd is going to really jack up the cost.
Is There a way for me to get a notification when you reply? My email address is Thanks

Our forum sends an email to everyone participating in a topic whenever there is a new reply so if you are not receiving them then they may be going to your junk folder. If they are going to the junk folder then you could add us to the safe sender list so they go to your inbox instead.

We carry live axles, bearing hangers, wheel hubs, etc. for beach wagons however these are new parts which are not listed on our site yet. We could add them to a kit though. 

We have freewheels that work with our sprockets and axles so that is no problem at all. 

All of our throttles and brake levers fit onto 7/8" OD tubing or handlebars and are designed to slide onto handlebars with ends and they are not designed to mount to round handles. Due to this a handlebar with ends may need to be attached to the round pull handle so the throttle and brake lever can be mounted. 

We have not received any reports from our customers of one wheel drive beach wagons working in the sand although that may be without the addition of human power to the wagon so we are not sure if one wheel drive will work if you help it to get started. 

For a beach wagon with a 300-pound gross weight a 600, 650, or 1000 Watt motor will do the job with a 3-4 MPG top speed. 

The battery life is only limited by how much space and weight capacity the wagon has for the batteries. If you go with a 45-minute runtime then the battery pack will be fairly small and weigh around 25 pounds, once you get into the 1.5-hour, 2-hour, 3-hour, and 4-hour runtimes the battery pack gets incrementally larger and heavier depending on how much runtime the wagon is designed to have. 

Please let us know your thoughts and we can take it from there.

Maybe because I’m logging in with Facebook, I’m not getting any notifications. 1.5hr battery will prolly be ok. Maybe I can price out with and without live axle.
Also. I can’t seem to find any info on mounting a live axle to the existing tube in place that the wheels mount to
I would like to get this project started ASAP. I think I’m going to try just 1wd. It will at least be an assist. My wheels bolt on with 3 lugs. Is there a sprocket that I can just bolt to that with spacers? I’m thinking 24v 450w. Freewheel so I can pull most of the time with assist on hills. And a brake kit.

We have an SPR-B1211FW freewheel sprocket that fits onto our MOT-24450G 24V 450W motor. This freewheel sprocket is for 1/2" x 1/8" (#410) bicycle chain. 

I ran a gear ratio calculation and found that with the sprocket and motor listed above and a 13" diameter wheel, a 48 tooth sprocket would be good for a top speed of 4 MPH. If you want it geared lower than that then a larger wheel sprocket would be needed. A 65 tooth sprocket would provide a 3 MPH top speed. 

We can check and see if a wheel sprocket is available that fits your wheel if you could let us know the number of teeth, bolt circle diameter, bolt hole diameter, and minimum center hole diameter for the sprocket. Or we could include with the kit any sprocket on our site that you deem to be suitable for the job.

As far as a brake kit goes we would need to find a rotor that would mount on the wheel so once we know the sprocket mounting specifications then we can look further into that. 

Ok. I’ll be home in 20min to measure and reply
It looks like lug nut holes are 3” apart and tube is 3/4”
I think the 48t 4mph would be good.
Does the motor that you recommended have other types of mounts? Or only the one for a bicycle frame?

That 24V 450W motor only has one type of mount, however, we have a mounting bracket for it (item # HDW-250) that is designed for a bicycle and is steel so it can be bent, drilled, and/or welded for mounting the motor to other applications.

  HDW-250 Mounting Bracket

I checked and there are no already made sprockets available for a bolt circle diameter with three holes that are 3" apart as shown in your photo, so that sprocket would need to be custom made. 

We custom make sprockets for #410 chain. Here is a link to the order page for our custom-made sprockets:

I recommend purchasing or borrowing a digital caliper before ordering so your measurements are precise.

Here is a link to a calculator for determining the bolt circle diameter from measuring the center to center distance between two adjacent bolt holes:

There are no brake rotors available that fit the rim bolt pattern either so a plate adapter with holes would need to be made to convert the rim pattern to a standard brake rotor pattern. We could include a brake kit with a standard rotor and then you could make or have made the adapter. 

OK let’s build the kit. I will make adapter plates to attach sprocket and rotor to my bolt pattern. I think I prefer a thumb throttle with battery indicator

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