Dual rate springs with crossover rings are the single most cost-effective suspension upgrade. By greatly reducing body roll and nose dive, FOX's Dual Rate Spring Kit includes everything needed to upgrade your UTV to a true dual rate setup, complete with crossover adjustment. We use the highest- grade springs to ensure consistent performance and to avoid sagging over time.. 3.0in ID X 12in X 400lbs Main; 6in X 350lbs Tender. Includes couplers. Powder coat silver.. Fox 14-19 Polaris RZR XP 1000 EPS Dual Rate Spring Upgrade (Race - 350/400) - Front. Kit: Upgrade Polaris XP1000 LE/Turbo Front Dual Rate Spring Race (350/400). 2014-2019 Polaris XP1000; and XP1000 Turbo-2 and 4 seat. UTV; Shock upgrade; Side by side; Spring Kit; Dual Rate. DUAL RATE SPRING UPGRADE (PAIR)-SPORT/RACE. FOX Spring Upgrade Kit Front Race. Spring Upgrade Kit

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