Swift Bulletproof Coil-Over Spring - Barrel Type - Bulletproof - 2.5" ID x 16" Tall - 175 lb. Racing Radio Systems (4) vacuum ports

(4) vacuum ports

sealed aluminum motor housing

voltage insulating material to resist carbon tracking while ensuring that the ignition spark reaches the spark plug terminals For optimum voltage carrying capabilities the rotor tips are made from low resistance brass for maximum voltage transfer

They offer 2 and 4 stroke oil

Swift Bulletproof Coil-Over Spring - Barrel Type - Bulletproof - 2.5" ID x 16" Tall - 175 lb. Racing Radio Systems (4) vacuum portsPURPOSE BUILT FOR THOSE OF YOU PUTTING MORE STRESS ON A SPRING THAN HOW IS CONVENTIONALLY USED. WE SOUGHT AFTER A NEW APPROACH IN DEVELOPMENT FROM OUR REGULAR SUSPENSION SPRING. Swift Springs manufactures springs with differing rates for a variety of circle track racing applications. With options for both dirt and asphalt tracks, Swift has a wide range of coil spring formats, including coil over, dual rate, bump springs, and more. Swift Springs