Swift Rear Coil Spring - 5.0" OD x 16" Tall - 225 lb. R10003M Billet reluctor and a magnetic

Billet reluctor and a magnetic pickup produce accurate trigger signals

Various adapters are available for a wide range of applications

Pre-drilled for pyrometer probes

Use The Original Scribner Holly Carb Storage Case

Swift Rear Coil Spring - 5.0" OD x 16" Tall - 225 lb. R10003M Billet reluctor and a magneticDEVELOPED SPECIFICALLY FOR ROUND TRACK RACING. DESIGNED TO HAVE THE OPTIMAL SPRING RATE SWEET SPOT WHERE THE SPRING IS USED ON ACTUAL VEHICLE. 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 superior engineering has provided the