1. Using a rubber molding process, the rubber will deform when subjected to an external force, the external force restitution revoked; 2. The handle for the port type handle, mounted on this electric motorcycle handlebars while both sides can also refill handle lights and other decorative accessories, very convenient; 3. The income of the set spring stretch jacket solved before hand because the throttle cable followed them together drawbacks increase their security; 4. Set multi modes adjustable switch, can adjust the temperature of 50~70'C