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Lying back while outpedaling every upright cyclist on a descent is a specific kind of joy.


:INFO
Homebuilt Recumbent Bicycle from Scratch
Build a low-racer or long-wheelbase recumbent from steel tube using a welder or brazing torch. Plans are available from the Human-Powered Vehicles community and the Atomic Zombie book series.


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80 Hours

:PATH
Design the Frame
Choose long wheelbase for stability and ease of riding, or short wheelbase for compactness and performance. Download a proven plan rather than designing from scratch for a first build. Atomic Zombie plans are well-documented and widely built.

:PATH
Build the Frame
Use 4130 chromoly or mild steel square and round tube. Tack-weld all joints before final welding. Check alignment on a flat table after every major weld. Grind, sand, and paint before assembly.

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Tune the Ride
Set up the seat angle and boom length for your inseam first. Adjust stem and handlebars for a relaxed arm position. Expect 5 to 10 hours of low-speed riding before the balance becomes intuitive.

:CHECKLIST
Build Checklist
[ ] Choose a proven recumbent plan and study it fully before cutting
[ ] Source 4130 or mild steel tubing in the diameters specified
[ ] Cut all tubes to length and verify against plan before welding
[ ] Build a welding jig or flat table fixture for alignment
[ ] Tack all joints and check alignment before full welds
[ ] Grind welds smooth at seat and body contact points
[ ] Prime and paint before any component assembly
[ ] Source a mesh seat or build a seat frame with suspension mesh
[ ] Test ride at low speed in a quiet area before riding on roads

:NOTE
Steering feel on a short wheelbase recumbent is unlike any upright bicycle. Many builders fit a temporary training wheel for the first few test rides to build confidence before removing it.