Mechanical transmission for the win, this simple plastic pulley can attach to your TT motor to transmit rotation from the motor axle to...somewhere else.

This is a very useful part when you require more than wheels for your robotics project. A belt and pulley solution can be light-weight and very efficient. 

This TT Motor Pulley has a slot for fitting onto our DC gearbox motors and even comes with a mounting screw for secure attachment. A belt is not included, you could use a rubber band, twine, yarn or any other strong and flexible material with a 2mm diameter.