do it yourself four wheeled bicycle free plans

Do it yourself four wheeled bicycle free plans

STEERING WHEEL

Steering wheel is not a real wheel. It is based on two M 12 endless screws, two 25 cm long steel 20x3 mm profiles (ST) and two 16 cm long 22 mm round Aluminium sticks as handles (HA). Use sticks instead tubes, so you can drill a 5.5 M hole in it. Just screw M6 screw tight in the hole and that's it.

In between is 8 cm long steel 20x3 mm profile (SR), so the wheels turning point is in the middle of the steering wheel, not in the bottom.

Steering wheel of do it yourself four wheeled bicycle

Click image to enlarge - Do it yourself four wheeled bicycle free plans

Below is, perpendicular to ST, a small piece of a steel 25x25x3 mm L profile, preventing steering wheel to turn around the steering stick or to go up from it.

On handles (HA) we mount breaks, so choose the diameter of handles (HA) regarding to your breaks.

Use a little waterworks nut with screw to prevent steering stick to move forwards.

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