{"product_id":"polaris-rzr-pro-xp-4-stage-1-dual-rate-spring-kit-fox-dynamix-shock","title":"RZR Pro XP 4 Stage 1 Dual Rate Spring Kit (FOX Dynamix) | ZBroz Racing","description":"\u003ch1\u003ePolaris RZR Pro XP 4 Stage 1 Dual Rate Spring Kit (FOX Dynamix) by ZBroz Racing\u003c\/h1\u003e\n\u003cp\u003eTransform your 4-seat Pro XP's factory FOX Dynamix shocks into a true dual-rate setup. The \u003cstrong\u003eZBroz Pro XP 4 Stage 1 dual rate spring kit FOX Dynamix\u003c\/strong\u003e upgrades OEM FOX Dynamix single-rate springs on your Pro XP 4 to a dual-rate setup with adjustable billet crossover rings — tuned for the longer wheelbase and 4-passenger loads. The smartest first suspension upgrade for any FOX Dynamix-equipped Pro XP 4.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConverts OEM single-rate to dual-rate\u003c\/strong\u003e using crossover rings\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdjustable billet crossover rings\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1 spring rates\u003c\/strong\u003e tuned for the 4-seat chassis\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDirect fit on OEM FOX Dynamix shocks\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTuned for Pro XP 4-passenger weight\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShot-peened pre-set chrome silicone wire springs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in the USA\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: Dual-rate spring kit with crossover rings (Stage 1)\u003c\/li\u003e\n\u003cli\u003eShock compatibility: OEM Polaris FOX Dynamix (Pro XP 4)\u003c\/li\u003e\n\u003cli\u003eApplication: 4-seat Polaris RZR Pro XP 4 with FOX Dynamix factory shocks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003ePro XP 4 FOX Dynamix springs\u003c\/strong\u003e kit fits the 4-seat Polaris RZR Pro XP 4 with FOX Dynamix shocks. For 2-seat Pro XP\/FOX Dynamix, see K25-PL1031-0. For Walker Evans-equipped Pro XP 4, see K25-PL1032-0.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat does the dual-rate setup do?\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003edual rate spring kit\u003c\/strong\u003e uses two rates: soft initial for small-bump comfort and progressive for big hits. The crossover ring lets you tune the transition.\u003c\/p\u003e\n\u003ch3\u003eWill this fit my 2-seat Pro XP?\u003c\/h3\u003e\n\u003cp\u003eNo — this kit is 4-seat Pro XP 4 specific. For 2-seat Pro XP with FOX Dynamix, use K25-PL1031-0.\u003c\/p\u003e\n\u003ch3\u003eWhat if I have Walker Evans shocks?\u003c\/h3\u003e\n\u003cp\u003eUse K25-PL1032-0 for Walker Evans-equipped Pro XP 4. Spring dimensions differ between shock types.\u003c\/p\u003e\n\u003ch3\u003eWhy are these tuned differently from the 2-seat kit?\u003c\/h3\u003e\n\u003cp\u003eThe 4-seat Pro XP 4 has a longer wheelbase and 4-passenger weight — this \u003cstrong\u003ePro XP 4 dual rate spring kit with crossover rings\u003c\/strong\u003e uses rates tuned for that mass and geometry.\u003c\/p\u003e\n\u003ch3\u003eIs this better than new shocks?\u003c\/h3\u003e\n\u003cp\u003eFor value-conscious upgrades, this \u003cstrong\u003eStage 1 spring upgrade for Pro XP 4 FOX Dynamix\u003c\/strong\u003e delivers measurable ride quality without the cost of new shocks.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy ZBroz Racing\u003c\/h2\u003e\n\u003cp\u003eZBroz spring kits leverage the same engineering depth as the EXIT shock platform. As a \u003cstrong\u003ePolaris RZR Pro XP 4 dual rate springs for FOX Dynamix shocks\u003c\/strong\u003e kit, this delivers real ride quality gains at a fraction of new shock cost. The \u003cstrong\u003eoff-road Polaris RZR Pro XP 4 FOX Dynamix spring upgrade\u003c\/strong\u003e that maxes out your factory hardware. The smart \u003cstrong\u003eUTV dual rate springs\u003c\/strong\u003e and \u003cstrong\u003eRZR Pro XP 4 springs\u003c\/strong\u003e path for 4-seat owners. As a \u003cstrong\u003ePro XP 4 spring kit\u003c\/strong\u003e, this is the 4-seat FOX Dynamix option.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOrder Yours Today\u003c\/h2\u003e\n\u003cp\u003eUpgrade your 4-seat Pro XP's ride without new shocks. Add the \u003cstrong\u003eZBroz Pro XP 4 Stage 1 dual rate spring kit (FOX Dynamix)\u003c\/strong\u003e to your order. Shop\/Order from Dunes 2 Dezert SXS.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does the dual-rate setup do?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A dual rate spring kit uses two rates: soft initial for small-bump comfort and progressive for big hits. The crossover ring lets you tune the transition.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this fit my 2-seat Pro XP?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No — this kit is 4-seat Pro XP 4 specific. For 2-seat Pro XP with FOX Dynamix, use K25-PL1031-0.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What if I have Walker Evans shocks?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Use K25-PL1032-0 for Walker Evans-equipped Pro XP 4. Spring dimensions differ between shock types.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why are these tuned differently from the 2-seat kit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 4-seat Pro XP 4 has a longer wheelbase and 4-passenger weight — this Pro XP 4 dual rate spring kit with crossover rings uses rates tuned for that mass and geometry.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this better than new shocks?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For value-conscious upgrades, this Stage 1 spring upgrade for Pro XP 4 FOX Dynamix delivers measurable ride quality without the cost of new shocks.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"ZBroz Racing","offers":[{"title":"Default Title","offer_id":44216094523428,"sku":"K25-PL1033-0","price":594.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/6488\/3236\/files\/k25-pl1033-0.jpg?v=1780112947","url":"https:\/\/dunes2dezertsxs.com\/products\/polaris-rzr-pro-xp-4-stage-1-dual-rate-spring-kit-fox-dynamix-shock","provider":"Dunes 2 Dezert SXS","version":"1.0","type":"link"}