Adult sized four wheel bikes

STEERING

For steering we used stainless steel 12 mm round stick (P) and local locksmith bended it. On the upper side it is bended to mount steering wheel on it, on front to move the steering mechanism.

To make our pedalcar as short as possible, we put the steering mechanism in front of chassis (usually it comes inside the chassis). To turn wheels the right way (left, when you turn steering wheel left, right, when you turn it right), the stick must be below the steering mechanism (otherwise you will turn steering wheel in one direction and the car will turn in the oposite direction :-).

Steering stick is mounted on the chassis with two pieces of steel L profiles 25x25x3 mm (T1,T2) with a 12 mm hole in it. You must file the hole to adjust it to the angle of the steering stick. In the middle of the chassis comes a construction, made of 30x15x2 mm Aluminium square tubes (two vertical 43 cm high and one horizontal between them), carrying the upper part of the steering stick.

Steering stick of adult sized self made four wheel bicycle

Steering mechanism moving parts of adult sized it yourself bike car

Steering stick holders of home made bike car

Click image to enlarge - Free plans of adult sized bike car

All moving parts (Mp) are made of a screw, two nuts and a lock washer between. Live some space between the screw and the first nut, so moving parts can move between themselves, but pull tight one nut against the other, so they can't unwind.

Steering mechanism of do it yourself pedal car

Click image to enlarge - Plans of our pedal car

A mechanism to move wheels with steering stick are made of 20x20x3 mm steel L profiles. One (S) is mounted on the front wheel carrier (with a trgle again!), the other one (R) lies between the first one (S) and the steering stick (P).

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