Wheeled vehicle

A recreational vehicle comprising:

• a drive wheel having a drive axle;
• a first frame member attached to the drive wheel for supporting a rider, said first frame member extending generally upwardly from the drive axle such that the center of gravity of the rider is substantially positioned over the drive axle;
• pedals attached to the drive axle for propelling the drive wheel selectively in the forward and reverse directions;
• a plurality of support wheels;
• a second frame member for attaching the support wheels to the drive wheel such that the support wheels are positioned rearward of the drive wheel and in substantially the same plane as the drive wheel, said second frame member extending generally rearwardly and outwardly from the drive axle;
• an axle securing the support wheels to one another;
• means for allowing sufficient vertical and horizontal rotation of the axle to allow the support wheels to pronate as the wheeled vehicle turns such that the support wheels track behind the drive wheel.

A wheeled vehicle comprising:

• a drive wheel having a drive axle disposed through the center of the drive wheel;
• a first frame member extending generally upwardly from the drive axle such that the center of gravity of the rider is substantially positioned over the drive axle, said first frame member having a seat attached thereto;
• pedals attached to the drive axle for driving the drive wheel selectively in the forward and reverse directions;
• a pair of support wheels;
• a second frame member for attaching the support wheels to the drive wheel, said second frame member extending generally rearwardly and downwardly from the drive axle;
• an axle securing the support wheels to one another;
• means for allowing sufficient vertical and horizontal rotation of the axle to allow the support wheels to pronate as the wheeled vehicle turns such that the support wheels track behind the drive wheel, said means comprising a frustoconical piece disposed within a ring formed in the axle, a bracket onto which the axle is attached and a forward projection disposed on the axle and pivotably attached to the bracket.

A unicycle training device comprising:

• a unicycle having a drive wheel and a drive axle;
• a plurality of support wheels;
• a frame member for attaching the support wheels to the unicycle, said frame member extending generally rearwardly and outwardly from the drive axle and attached to the support wheels;
• an axle securing the support wheels to one another;
• means for allowing sufficient vertical and horizontal rotation of the axle to allow the support wheels to pronate as the unicycle turns such that the support wheels track behind the unicycle.