Do it yourself 4 wheel bikes

SEAT

We made the seat of wood. Plain and simple. Seat (Q1) and back (Q2) are inclined back regards to the floor (red lines).

Click image to enlarge - Do it yourself 4 wheel pedal bike free plans

It is all mounted with wood screws on another board, mounted on longitudinal carriers (A,B). Annual rings of the board must be transversal to carriers to attain strength.

Anual rings direction on home made pedal car

Click image to enlarge - free plans for 4 wheel pedal bike

This sites are just information about what we did. The vehicle is not done by any safety standards and can be life dangerous when producing or using it. You are free to use our design and ideas in part or in whole, but you do it absolutely on your own risk and responsibility!
If using it commercial, you must cite the source: "Designed by www.spiller.si":

INTRODUCTION
DIMENSIONS
CHASSIS FRONT WHEELS
REAR WHEELS
STEERING
STEERING WHEEL
PEDALS
FRONT GEAR
REAR GEAR
SEAT
BREAKS
LINK
OTHER LANGUAGES