Flatpack Weldless Cargo Bike Trailer Kit – Heavy-Duty, Repairable, and Built to Last. We’re excited to introduce a first-of-its-kind innovation in cycling utility: a flatpack, weldless, bolt-together cargo bike trailer designed for high strength, heavy loads, and long-term sustainability. This DIY trailer kit is engineered to be assembled at home using only basic tools—no welding required.
Capable of carrying loads up to 80 kg, this trailer is built around off-the-shelf components for maximum accessibility, affordability, and repairability. Every part has been thoughtfully chosen so it can be easily replaced or upgraded using standard bike parts, hardware, or materials available locally or online.
The trailer is designed to be used with a standard BMX wheelset, giving you the flexibility to use any combination of front and rear BMX wheels, whichever you can source. Whether you’re a maker, commuter, or DIY enthusiast, this kit empowers you to build a rugged, modular cargo trailer without excess waste or unnecessary expense. What sets this kit apart is its customizable and modular approach. You only purchase what you need:
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Just need the PDF plans to DIY from scratch? We’ve got you.
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Want pre-cut and pre-drilled metalwork? We can supply that.
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Don’t need the wooden deck? Skip it and use your materials.
This keeps the kit affordable, efficient, and waste-free—we don’t want to sell you parts you already have or can easily source secondhand.
Key Features:
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Flatpack and bolt-together – no welding required
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Supports up to 80kg of cargo
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Modular purchasing: buy only the parts you need
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Built for lifetime repairability
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Compatible with standard BMX wheels
Let’s move more stuff by bike—with smarter, sustainable gear made for real-world use.