ATV Springs ATV, Side-by-Side & UTV Shocks & Swingarms For Polaris Sportsman SP 850 For Sale High Lifter Tender Springs The high-quality chrome silicon springs are 25% heavier compared to OE stock springs, a feature that makes them perfect for supporting additional accessory... Child care costs in the United States - Economic Policy Institute Heavy duty springs are approximately 25% heavier than stock High quality chrome silicone EPI Heavy Duty Spring. Compatibility: 2015 Polaris 1000 Sportsman XP 4x4. Spring Rate (Lbs): 150. Location: Rear. Credit or Debit Card. We do our best to cancel orders upon request before our automated system allocates regional inventory The springs, crafted from top-tier chrome silicon, offer a weight that's 25% heavier than OE stock springs.