Configurable cycle vehicle and method of conversion of a cycle vehicle between first and second riding conditions

A configurable cycle vehicle comprising:

• an adjustable frame;
• at least two wheels engaged with the frame;
• a seat element engaged with the frame;
• handlebars engaged with the frame;
• a propulsion mechanism for providing motive force to the wheels, the propulsion mechanism having pedals configured to provide drive to at least one of the wheels;
• a drive shaft which couples the pedals to the wheels;
• and
• an electric motor;
• wherein
• the adjustable frame includes at least a supporting frame member and a crossbar which are adapted to adjustably reposition to one another to provide first and second different riding conditions, the second riding condition being recumbent relative to the first riding condition, and
• the drive shaft is adapted to engage in the first riding condition and disengage in the second riding condition, the electric motor providing the motive force in the second riding condition.