{"product_id":"polaris-rzr-rs1-billet-rear-knuckles","title":"Polaris RZR RS1 Billet Rear Knuckles","description":"\u003cp\u003eGet Polaris RZR RS1 Billet Rear Knuckles from SuperATV for double the strength of stock and perfect compatibility with your stock or aftermarket suspension. \u003cbr\u003e \u003cstrong\u003eBeef Up Your Knuckles\u003c\/strong\u003e\u003cbr\u003eIf you like to ride solo on your RS1, you need to know you and your machine can get through anything. Upgrade to SuperATV’s Billet Rear Knuckles for the Polaris RZR RS1, and be confident knowing that they give you unmatched strength for a more reliable ride. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVirtually Two Times Stronger than Stock\u003c\/strong\u003e\u003cbr\u003eThese aren’t ordinary spindles, they’re made with 7075-T6 billet aluminum which outperforms your factory knuckles easily. The yield strength of 7075 is 73,000 psi nearly double that of the 6061’s 40,000 psi yield strength on stock. Whether you’re racing or adventuring, all that strength means you can count on them to survive the ride.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExcellent Compatibility\u003c\/strong\u003e\u003cbr\u003eWe made these knuckles to match OEM specifications so that any suspension setup you have will fit. We even trimmed down some unnecessary material from stock specs to improve fitment and range. Basically, we made installation as easy as possible, no matter what you’ve got on your RS1.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003ci\u003e \u003cbr\u003e\u003cb\u003eFITMENT\u003c\/b\u003e \u003c\/i\u003e\u003c\/p\u003e\n\u003cdiv data-content-type=\"html\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cul\u003e\n\u003cli\u003ePolaris RZR RS1 : 2018-2022\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eReplacement for OE #’s:\u003c\/strong\u003e 5140634, 5140635\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eGet Polaris RZR RS1 Billet Rear Knuckles from SuperATV for double the strength of stock and perfect compatibility with your stock or aftermarket suspension. \u003c\/p\u003e\n\u003cp\u003e The information in this listing was collected and considered accurate from \u003ca title=\"SuperATV.com\" href=\"https:\/\/www.superatv.com\/polaris-rzr-rs1-billet-rear-knuckles\"\u003ehttps:\/\/www.superatv.com\/polaris-rzr-rs1-billet-rear-knuckles\u003c\/a\u003e on 01\/03\/2026 11:01 PM\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"Offroad Armor","offers":[{"title":"Default Title","offer_id":48094965334170,"sku":"HKP-P-RZR1K-B#RS","price":706.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/0181\/1610\/files\/polaris-rzr-rs1-billet-rear-knuckles-4127118.jpg?v=1779381733","url":"https:\/\/offroad-armor.com\/products\/polaris-rzr-rs1-billet-rear-knuckles","provider":"Offroad Armor","version":"1.0","type":"link"}