Four wheel bicycle free plans

FRONT WHEELS

Front wheels must turn to steer the four wheel bicycle. We took 30x5 mm stainless steel (M1) and asked the local locksmith to bend it in U form for our needs (width Wd depends on width of your wheels, a tolerance of up to +/- 0,5 cm is allowed). Ask your local dealer for kind of stainless steel, suitable for high burden of wheel holders.

Click image to enlarge - Free plans of our four wheel bicycle

At the end of one side it must be bend in L-shape to mount wheel on the chassis.

You need another L shaped piece (M2) to mount the other side of wheel holder on chassis.

On front transversal profiles (D,J) we mounted another 30x5 mm stainless steel (N), where wheel holders are mounted on.

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