Instructables

How to Build a Cargo Cycle Truck

Picture of How to Build a Cargo Cycle Truck
I was inspired by this bike which is much more beautiful than the one I built. I built the bike in Haiti, with a minimum number of tools and ingredients. I would have posted this a couple months ago, but was delayed because as I was taping the stencil on the frame, Haiti was struck by 7.3 magnitude earthquake. Costs for this bike were $25 for the bike, about $10 for steel, and $5 for welding rods. With the seat tube change the frame is 17'' tall, I'm 6'2'' and it's not uncomfortable to ride and a friend who is about 5'6'' took a 20 mile ride on it recently and fared okay. To see more or our projects go to www.annbekan.blogspot.com


 
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Step 1: Buy a bike

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Find an old 20-inch BMX bike.  I bought one on the street in Port Au Prince for $25 (I think I paid twice as much as it was worth). Try to find a bike that already has good brakes. My bike has a coaster brake in the back and cheap caliper brakes up front.

Step 2: Start building

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Find or buy tubing to build the cargo rack. I used ¾ inch x 1/16 square tubing.  I bought 20' of it for $7.50, I ended up using about 25'.
Remove the cranks. Cut out the seat tube in order to weld it on top of the frame to extend the seat tube so that the bike will fit a whole person.

Step 3: Extend the seat tube

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Cut a 12'' long piece of square tubing and slide it through the top tube down to the bottom bracket. Then slide the seat tube onto this piece.

Step 4: Seat tube gusset and main rack supports

Picture of seat tube gusset and main rack supports
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Cut a diagonal gusset that goes from the seat tube to the top tube in order to reinforce the seat tube.
Cut two pieces of square tubing to 56'' then clamp them to the sides of the bike frame.
NHRider1 year ago
Great Job, turned out well.
bertus52x114 years ago
 Nice concept! Would use a larger frame though!
@ bertus52x11 -- I like the idea of the smaller frame; it makes mounting/dismounting MUCH easier. I currently use an extra-large framed Raleigh MT 20 like it's a large parcel truck and I have a heck of a time getting on/off when it is fully loaded. I have to lean the bike and sometimes spill my cargo.

@depp.ben -- Have you thought about also raising the handlebars? From the pictures, I imagine you kinda leaned forward. Is this an issue? Other than that I LOVE this instructable!!!! I'm gonna start hacking my daughter's 20" bike as soon as she outgrows it! Thanks so much!!
What is the maximum/optimal/useful load?
What are the difficulties when driving (shimmy...)?
depp.ben (author) 3 years ago
The frame size isn't bad, with the seat tube extended like it is it's a 17'' frame. The handle bars can be adjusted forward. Ideally I would build different handlebars with more sweep.

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