{"product_id":"fox-4-0-factory-series-bypass-piggyback","title":"Fox 4.0 Factory Series Bypass Piggyback","description":"Overview:\n\nThe FOX 4.0 Factory Series Bypass shock is the ideal position-sensitive shock for lightweight unlimited offroad racecars and pre-runners.\n\nBypass shocks allow precise adjustment of multiple stages of compression and rebound damping. The 4.0 Factory Series Bypass shock adds another competitive option to FOX's already extensive bypass shock lineup. The expanded volume provides a wider damping range and increased cooling-optimizing the suspension and increasing the vehicle's capabilities. The 4.0 Bypass shock uses the same extended and compressed lengths as the 3.5 Factory Series Bypass for easy upgrading.\n\nThe 4.0 Bypass shock comes standard with FOX's Rotating Body Cap (RBC) technology that allows quick and easy positioning of the shock body with simple hand tools. RBC eliminates the need of re-clocking body cap threading to achieve shock body rotation for chassis clearance issues. The 1.125\" hard chrome-plated 17-4 H900 stainless steel shock shaft provides increased strength and stiffness.\n\nMultiple stroke lengths are available with a large 3.5 piggyback reservoir and 4 or 5 tube layouts. FOX also offers many custom options to maximize your suspensions performance while adhering to the vehicle's space restrictions. Options include custom bypass tube layouts, External Cooling Systems (ECS), remote reservoir mounting, and eyelet lengths.\n\n\u003ch3\u003eSpecs:\u003c\/h3\u003e\n\n\u003ch5\u003eBody:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e Smooth-bore, clear coated, zinc plated, honed seamless alloy bodies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eComponents:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e Black anodized 6061-T6 billet aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eShaft:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e 1.25\" hard chrome plated stainless steel 17-4 H900\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003ePiston:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e Race-developed high-flow piston design\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eValving:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e Proprietary deburred valve shims\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eSeals:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e Redundant sealing pack system main seal, wiper seal, scraper seal\u003c\/li\u003e\n    \u003cli\u003e High temperature Viton seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eOil:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e FOX formulated for ultimate performance at variable temperatures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eReservoir:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e Piggyback\u003c\/li\u003e\n    \u003cli\u003e Optional remote reservoir\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eMounting:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e Lined, heat-treated, alloy steel spherical bearings 5\/8\" bolt x 1 1\/2\" wide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eAdjustments:\u003c\/h5\u003e\n\n\u003cul\u003e\n    \u003cli\u003e Rotating Body Cap\u003c\/li\u003e\n    \u003cli\u003e Compression bypass adjusters\u003c\/li\u003e\n    \u003cli\u003e Rebound bypass adjusters\u003c\/li\u003e\n    \u003cli\u003e Nitrogen pressure\u003c\/li\u003e\n    \u003cli\u003e Compression valving\u003c\/li\u003e\n    \u003cli\u003e Rebound valving\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eQuick Adjust Bypass (QAB)\u003c\/h2\u003e\n\nAvailable for all 2.5, 3.0, and 3.5 external bypass shocks. Quickly and easily manually adjust bypass tubes without tools. The adjuster has the same flow and range as standard bypass units. The QAB has a definitive click at every quarter turn. O-ring seal keeps moisture and contaminants out.\n\n\u003ca href=\"https:\/\/www.rpgoffroad.com\/wp-content\/uploads\/FOX_QAB_DETAIL-2.jpg\"\u003e\u003cimg class=\"alignnone size-medium wp-image-4933\" src=\"https:\/\/www.rpgoffroad.com\/wp-content\/uploads\/FOX_QAB_DETAIL-2-300x200.jpg\" alt=\"FOX_QAB_DETAIL-2\" width=\"300\" height=\"200\"\u003e\u003c\/a\u003e  \u003ca href=\"https:\/\/www.rpgoffroad.com\/wp-content\/uploads\/FOX_QAB_DETAIL-1.jpg\"\u003e\u003cimg class=\"alignnone size-medium wp-image-4934\" src=\"https:\/\/www.rpgoffroad.com\/wp-content\/uploads\/FOX_QAB_DETAIL-1-300x200.jpg\" alt=\"FOX_QAB_DETAIL-1\" width=\"300\" height=\"200\"\u003e\u003c\/a\u003e","brand":"TSW Offroad","offers":[{"title":"(Sold Individually) 4.0 x 16 Factory Series Bypass (5 Tube) Piggyback","offer_id":46133335654549,"sku":null,"price":2279.95,"currency_code":"USD","in_stock":true},{"title":"(Sold Individually) 4.0 x 16 Factory Series Bypass (5 Tube) Piggyback (with QAB)","offer_id":46133335687317,"sku":"981-09-392","price":2479.95,"currency_code":"USD","in_stock":true},{"title":"(Sold Individually) 4.0 x 18 Factory Series Bypass (5 Tube) Piggyback","offer_id":46133335720085,"sku":"981-02-393","price":2279.95,"currency_code":"USD","in_stock":true},{"title":"(Sold Individually) 4.0 x 18 Factory Series Bypass (5 Tube) Piggyback (with QAB)","offer_id":46133335752853,"sku":"981-09-393","price":2479.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/3798\/9525\/files\/FOX_OFFROAD_40_FACTORY_BYPASS_Resized.jpg?v=1770719239","url":"https:\/\/tswoffroad.com\/products\/fox-4-0-factory-series-bypass-piggyback","provider":"TSW Offroad","version":"1.0","type":"link"}