Pedal cycles

Claim 1

A TWO WHEELED PEDAL CYCLE COMPRISING FRONT AND REAR RUBBER TYRED WHEELS, EACH WHEEL BEING OF AN OVERALL DIAMETER OF BETWEEN 12 AND 19 INCHES, A COMPOSITE FRAME FORMED FROM TUBES ADHERED TOGETHER AND COMPRISING A SUBSTANTIALLY STRAIGHT MAIN FRAME MEMBER EXTENDING REARWARDLY FROM A POINT ABOVE THE FRONT WHEEL TOWARDS THE REAR WHEEL, SAID MAIN FRAME MEMBER HAVING UPSTANDING SUBSTANTIALLY AT RIGHT ANGLES FROM ITS FRONT END A POST MEMBER HOUSING A STEERING COLUMN WHICH IS SURMOUNTED BY HANDLEBARS, A HOUSING FOR A PEDAL CRANK AXLE SECURED DIRECTLY TO THE UNDERSIDE OF THE MAIN FRAME MEMBER INTERMEDIATE ITS ENDS, A SEAT TUBE SURMOUNTED BY A SADDLE IN ALIGNMENT WITH SAID HOUSING, SAID POST MEMBER AND SAID SEAT TUBE BEING OF A LENGTH EQUAL TO AT LEAST HALF THE DISTANCE BETWEEN THEM AND BEING JOINED AT THEIR LOWER ENDS TO SAID MAIN FRAME MEMBER TO FORM A FRAME OF OPEN F-SHAPE, THE F-SHAPED FRAME BEING RESILIENTLY SUPPORTED ON THE FRONT AND REAR WHEELS BY MEANS INCLUDING, FOR MOUNTING THE SPINDLE OF EACH WHEEL, A FORK CONNECTED TO EACH WHEEL AND TO THE FRAME FOR RELATIVE SPRINGING MOVEMENT, AND A RUBBER SPRING BEARING ON THE FORK ASSOCIATED WITH EACH WHEEL AND ADAPTED RESILIENTLY TO RESIST UPWARD MOVEMENT OF THE ASSOCIATED WHEEL RELATIVE TO THE FRAME.