Two wide linear grooves and two diagonal grooves deliver high drainage performance enhancing driving performance on wet roads
Flat Wire Linear Rate Bump Springs 1100 lbs/in
-Finished off with twin 80mm dual wall tips
Swift Spring bag 13" X OD 5
Swift Sport Springs 09-15 Infiniti G37 X COUPE / Q60 AWD CKNV36 4N911
Swift Assist Springs 65mm ID, 2.7 in length 6 kg/mm Pair autocross Two wide linear grooves and65mm ID, 2. 7 in length 6 kg mm Swift Assist Springs are made from a proprietary material. Heavier rates of assist springs over helper springs are used to fine tune the rebound travel of the shock. These springs can also help preventing loss of traction due to inside wheel lift during hard cornering. The same springs are used in Super GT, Formula Nippon, F3, F3000, Super Taikyu, IMSA, Pirelli World Challenge, Rally America, VLN, Le Mans Series,