Tech Cycle manufactures high performance battery cables that ensure your Tech Tornado (or stock H-D) starter receives the proper amperage to crank over big inch, high compression motors. Made from 4 gauge Pro-Flex material, these high stranded, highly flexible cables are available in several different colors and lengths. Tech Cycle recommends that a secondary ground strap, connected directly from the starter to the battery, be installed to ensure proper grounding of the starter