just a suggestion
a similar mechanism to a wind motor
as the front wheel rotates it gathers energy same way as a wind up toy but transfers that energy to a motor connected to the back wheel
when pressure is applied to the back wheel the motor is set off creating a burst of speed
this system is good because while the motor is running
the front wheel is still collecting energy to transfer
this is a completely different concept to the air treck motor but should create a similar result
will post schematics soon
