If a policy of full coverage or cable lock your bike to a pole in the neighborhood bad time to buy or install anything to reduce fear is a good idea. This project costs less than $ 30 and you must purchase the following: skateboard wheels or four wheels with roller skates, threaded rod, take note of four, saw, pliers, hammer, arbitrary rings and Loctite. Once the wheels, go to a hardware store and buy at least 4 meters 5/8th-inch threaded rod. Purchase of four screws that are screwed into the threaded rod and some Loctite. First round of the threaded rod through hollow shaft motor. Put a nut onto the threaded rod to the point where the finger to score and cut the threaded rod with a hacksaw. When you are finished cutting, turn the nut freshly cut edge of the cables in the hunt.
Repeat with the other wheel. Install a hand with a wheel and a feed nut and the threaded rod through the shaft. Install the other wheel and the nut and check adjustment. Cut the threaded rods flush with the nut and then two cuts at right angles to form an X-bar issues. Result of X with a hammer to bend the skateboard wheels and spoked to ensure that no vibration. Repeat with the other wheel.