Swift Flat Wire Linear Rate Bump Springs 1000 lbs/in Pull Bar Springs 570 4X918L Spring Rate Drop

570 4X918L Spring Rate Drop Front Rear Front Rear Kg/mm Kg/mm Inch Inch 16

Lower the vehicle within tolerance of each vehicle's usable stroke

Swift Spec-R Sport Springs are made for the track enthusiast looking to take their vehicle to the next level

60mm ID All Kits come with 4 thrust sheets & 4 metal washer sheets (1 kit for 2 springs)

Swift Flat Wire Linear Rate Bump Springs 1000 lbs/in Pull Bar Springs 570 4X918L Spring Rate DropFlat Wire Linear Rate Bump Springs 1000 lbs in Swift Bump Springs are made from a proprietary material. The same springs are used in Super GT, Formula Nippon, F3, F3000, Super Taikyu, IMSA, Pirelli World Challenge, Rally America, VLN, Le Mans Series, Formula Drift, and many other professional racing avenues.