{"product_id":"pro-r-lower-a-arm-and-knuckle-kit","title":"Polaris Pro R Lower A-Arm \u0026 Knuckle Kit","description":"\u003ch1\u003ePro R Lower A-Arm \u0026amp; Knuckle Kit\u003c\/h1\u003e\n\u003cp data-start=\"928\" data-end=\"1362\"\u003eThe \u003cstrong data-start=\"932\" data-end=\"969\"\u003ePRO R Lower A-Arm and Knuckle Kit\u003c\/strong\u003e is the \u003cstrong data-start=\"977\" data-end=\"1014\"\u003eultimate front suspension upgrade\u003c\/strong\u003e for Polaris Pro R and Turbo R owners who demand race-level durability, precision steering, and long-term reliability. Designed and manufactured by \u003cstrong data-start=\"1162\" data-end=\"1182\"\u003eLone Star Racing\u003c\/strong\u003e, this kit replaces the factory lower A-arms and knuckles with a \u003cstrong data-start=\"1247\" data-end=\"1299\"\u003efully reinforced, double-shear suspension system\u003c\/strong\u003e built to survive extreme racing and aggressive off-road abuse.\u003c\/p\u003e\n\u003cp data-start=\"1364\" data-end=\"1604\"\u003eConstructed from \u003cstrong data-start=\"1381\" data-end=\"1415\"\u003eheavy-duty 4130 chromoly steel\u003c\/strong\u003e and \u003cstrong data-start=\"1420\" data-end=\"1455\"\u003eTIG welded for maximum strength\u003c\/strong\u003e, these lower A-arms eliminate factory weak points while retaining OEM hubs, brakes, and chassis mounting hardware for a clean, bolt-on installation.\u003c\/p\u003e\n\u003cp data-start=\"1606\" data-end=\"1892\"\u003eAt the heart of this system is a \u003cstrong data-start=\"1639\" data-end=\"1677\"\u003evertical 1″ FK uniball lower joint\u003c\/strong\u003e, replacing the factory ball joint entirely. This setup dramatically increases strength, articulation, and service life. A \u003cstrong data-start=\"1800\" data-end=\"1831\"\u003e3\/4″ FK uniball shock mount\u003c\/strong\u003e further improves durability at another high-stress location.\u003c\/p\u003e\n\u003cp data-start=\"1894\" data-end=\"2173\"\u003eThe included \u003cstrong data-start=\"1907\" data-end=\"1972\"\u003ebillet knuckles feature a relocated tie rod mounting position\u003c\/strong\u003e, significantly improving steering geometry and reducing harsh feedback through the wheel. Every critical mounting point is now \u003cstrong data-start=\"2100\" data-end=\"2116\"\u003edouble shear\u003c\/strong\u003e, providing massive strength gains over stock components.\u003c\/p\u003e\n\u003cp data-start=\"2175\" data-end=\"2345\"\u003eThis kit is \u003cstrong data-start=\"2187\" data-end=\"2202\"\u003eBaja proven\u003c\/strong\u003e, having survived \u003cstrong data-start=\"2220\" data-end=\"2247\"\u003e1,300 brutal race miles\u003c\/strong\u003e under Branden Sims with \u003cstrong data-start=\"2272\" data-end=\"2293\"\u003ezero uniball play\u003c\/strong\u003e—a true testament to its durability and engineering.\u003c\/p\u003e\n\u003chr data-start=\"2347\" data-end=\"2350\"\u003e\n\u003ch2 data-start=\"2352\" data-end=\"2382\"\u003e🛠️ Key Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"2385\" data-end=\"2426\"\u003eHeavy-duty \u003cstrong data-start=\"2396\" data-end=\"2426\"\u003e4130 chromoly lower A-arms\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2429\" data-end=\"2460\"\u003eTIG welded for maximum strength\u003c\/li\u003e\n\u003cli data-start=\"2463\" data-end=\"2526\"\u003e\n\u003cstrong data-start=\"2463\" data-end=\"2489\"\u003eVertical 1″ FK uniball\u003c\/strong\u003e lower joint (ball joint replacement)\u003c\/li\u003e\n\u003cli data-start=\"2529\" data-end=\"2560\"\u003e\u003cstrong data-start=\"2529\" data-end=\"2560\"\u003e3\/4″ FK uniball shock mount\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"2563\" data-end=\"2600\"\u003eFully \u003cstrong data-start=\"2569\" data-end=\"2600\"\u003edouble-shear knuckle design\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2603\" data-end=\"2629\"\u003eImproved steering geometry\u003c\/li\u003e\n\u003cli data-start=\"2632\" data-end=\"2657\"\u003eReduced steering feedback\u003c\/li\u003e\n\u003cli data-start=\"2660\" data-end=\"2714\"\u003eRetains \u003cstrong data-start=\"2668\" data-end=\"2714\"\u003efactory hubs, brakes, and chassis hardware\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2717\" data-end=\"2765\"\u003eWorks with any tie rod kit using a \u003cstrong data-start=\"2752\" data-end=\"2765\"\u003e3\/4″ heim\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2768\" data-end=\"2797\"\u003eMisalignment spacers included\u003c\/li\u003e\n\u003cli data-start=\"2800\" data-end=\"2829\"\u003e\u003cstrong data-start=\"2800\" data-end=\"2829\"\u003eBaja race tested \u0026amp; proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2831\" data-end=\"2834\"\u003e\n\u003ch2 data-start=\"2836\" data-end=\"2860\"\u003e⚠️ REQUIRED COMPONENT\u003c\/h2\u003e\n\u003cp data-start=\"2861\" data-end=\"2932\"\u003e🚨 \u003cstrong data-start=\"2864\" data-end=\"2932\"\u003eThis kit REQUIRES Lone Star Racing Adjustable Upper Control Arms\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2934\" data-end=\"3021\"\u003eCompatible upper arms:\u003cbr data-start=\"2956\" data-end=\"2959\"\u003e\u003cstrong data-start=\"2959\" data-end=\"3021\"\u003ePolaris PRO R \/ Turbo R HD Upper A-Arms – Lone Star Racing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3023\" data-end=\"3141\"\u003eThis system is engineered as a complete suspension package and \u003cstrong data-start=\"3086\" data-end=\"3140\"\u003ewill not function properly with stock upper A-arms\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"3143\" data-end=\"3146\"\u003e\n\u003ch2 data-start=\"3148\" data-end=\"3175\"\u003e🔧 Tie Rod Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"3178\" data-end=\"3232\"\u003eWorks with \u003cstrong data-start=\"3189\" data-end=\"3232\"\u003eany tie rod kit using a 3\/4″ heim joint\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3235\" data-end=\"3290\"\u003eMisalignment spacers included for double-shear mounting\u003c\/li\u003e\n\u003cli data-start=\"3293\" data-end=\"3365\"\u003eOptional \u003cstrong data-start=\"3302\" data-end=\"3331\"\u003eShock Therapy Tie Rod Kit\u003c\/strong\u003e available\u003cbr data-start=\"3341\" data-end=\"3344\"\u003e➕ \u003cem data-start=\"3348\" data-end=\"3365\"\u003eAdd for $849.95\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3367\" data-end=\"3370\"\u003e\n\u003ch2 data-start=\"3372\" data-end=\"3393\"\u003e🚙 Vehicle Fitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"3396\" data-end=\"3417\"\u003e\u003cstrong data-start=\"3396\" data-end=\"3417\"\u003ePolaris RZR Pro R\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"3420\" data-end=\"3443\"\u003e\u003cstrong data-start=\"3420\" data-end=\"3443\"\u003ePolaris RZR Turbo R\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3445\" data-end=\"3448\"\u003e\n\u003ch2 data-start=\"3450\" data-end=\"3471\"\u003e📦 What’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"3474\" data-end=\"3504\"\u003e(2) 4130 chromoly lower A-arms\u003c\/li\u003e\n\u003cli data-start=\"3507\" data-end=\"3539\"\u003e(2) Double-shear billet knuckles\u003c\/li\u003e\n\u003cli data-start=\"3542\" data-end=\"3569\"\u003eFK uniballs (pre-installed)\u003c\/li\u003e\n\u003cli data-start=\"3572\" data-end=\"3601\"\u003eRequired misalignment spacers\u003c\/li\u003e\n\u003cli data-start=\"3604\" data-end=\"3644\"\u003eInstallation hardware (where applicable)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3646\" data-end=\"3649\"\u003e\n\u003ch2 data-start=\"3651\" data-end=\"3679\"\u003e🏁 Race-Proven Confidence\u003c\/h2\u003e\n\u003cp data-start=\"3680\" data-end=\"4025\"\u003eIf you’re pushing your Pro R at race pace, blasting through desert whoops, or hammering rocky terrain, the factory front suspension simply isn’t enough. The \u003cstrong data-start=\"3837\" data-end=\"3874\"\u003ePRO R Lower A-Arm and Knuckle Kit\u003c\/strong\u003e delivers \u003cstrong data-start=\"3884\" data-end=\"3956\"\u003enext-level strength, precision steering, and bulletproof reliability\u003c\/strong\u003e—engineered for racers, tested in Baja, and trusted by professionals.\u003c\/p\u003e","brand":"Lone Star Racing","offers":[{"title":"No Finish \/ No \/ No","offer_id":43121050517540,"sku":"51-1091900","price":4850.0,"currency_code":"USD","in_stock":true},{"title":"No Finish \/ No \/ Yes","offer_id":43121050550308,"sku":"51-1091900, ST-808-1000-10","price":5549.95,"currency_code":"USD","in_stock":true},{"title":"No Finish \/ Yes \/ No","offer_id":43121050583076,"sku":"51-1091900, 51-1091501","price":6600.0,"currency_code":"USD","in_stock":true},{"title":"No Finish \/ Yes \/ Yes","offer_id":43121050615844,"sku":"51-1091900, 51-1091501, ST-808-1000-10","price":7299.95,"currency_code":"USD","in_stock":true},{"title":"Semi Gloss Black \/ No \/ No","offer_id":43121050648612,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Semi Gloss Black \/ No \/ Yes","offer_id":43121050681380,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Semi Gloss Black \/ Yes \/ No","offer_id":43121050714148,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Semi Gloss Black \/ Yes \/ Yes","offer_id":43121050746916,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true},{"title":"Flat Black \/ No \/ No","offer_id":43121050779684,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Flat Black \/ No \/ Yes","offer_id":43121050812452,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Flat Black \/ Yes \/ No","offer_id":43121050845220,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Flat Black \/ Yes \/ Yes","offer_id":43121050877988,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true},{"title":"Gloss Black \/ No \/ No","offer_id":43121050910756,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Gloss Black \/ No \/ Yes","offer_id":43121050943524,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Gloss Black \/ Yes \/ No","offer_id":43121050976292,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Gloss Black \/ Yes \/ Yes","offer_id":43121051009060,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true},{"title":"Candy Red \/ No \/ No","offer_id":43121051041828,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Candy Red \/ No \/ Yes","offer_id":43121051074596,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Candy Red \/ Yes \/ No","offer_id":43121051107364,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Candy Red \/ Yes \/ Yes","offer_id":43121051140132,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true},{"title":"Candy Blue \/ No \/ No","offer_id":43121051172900,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Candy Blue \/ No \/ Yes","offer_id":43121051205668,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Candy Blue \/ Yes \/ No","offer_id":43121051238436,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Candy Blue \/ Yes \/ Yes","offer_id":43121051271204,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true},{"title":"Gloss White \/ No \/ No","offer_id":43121051303972,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Gloss White \/ No \/ Yes","offer_id":43121051336740,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Gloss White \/ Yes \/ No","offer_id":43121051369508,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Gloss White \/ Yes \/ Yes","offer_id":43121051402276,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true},{"title":"Silver Metallic \/ No \/ No","offer_id":43121051435044,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Silver Metallic \/ No \/ Yes","offer_id":43121051467812,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Silver Metallic \/ Yes \/ No","offer_id":43121051500580,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Silver Metallic \/ Yes \/ Yes","offer_id":43121051533348,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true},{"title":"Fire Engine Red \/ No \/ No","offer_id":43121051566116,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Fire Engine Red \/ No \/ Yes","offer_id":43121051598884,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Fire Engine Red \/ Yes \/ No","offer_id":43121051631652,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Fire Engine Red \/ Yes \/ Yes","offer_id":43121051664420,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true},{"title":"Gloss Orange \/ No \/ No","offer_id":43121051697188,"sku":"51-1091901","price":4935.0,"currency_code":"USD","in_stock":true},{"title":"Gloss Orange \/ No \/ Yes","offer_id":43121051729956,"sku":"51-1091901, ST-808-1000-10","price":5634.95,"currency_code":"USD","in_stock":true},{"title":"Gloss Orange \/ Yes \/ No","offer_id":43121051762724,"sku":"51-1091901, 51-10915011","price":6735.0,"currency_code":"USD","in_stock":true},{"title":"Gloss Orange \/ Yes \/ Yes","offer_id":43121051795492,"sku":"51-1091901, 51-10915011, ST-808-1000-10","price":7434.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/6488\/3236\/files\/DSC08202.jpg?v=1767339365","url":"https:\/\/dunes2dezertsxs.com\/products\/pro-r-lower-a-arm-and-knuckle-kit","provider":"Dunes 2 Dezert SXS","version":"1.0","type":"link"}