{"product_id":"radflo-3-0-16-bypass-shock-with-piggyback-reservoir-1-shaft-4-tube","title":"Radflo 3.0 Bypass Shock w\/ Piggyback Reservoir – 4-Tube, 1” Shaft","description":"\u003cp class=\"p1\"\u003eThe Radflo 3.0 4-Tube Bypass Shock with Piggyback Reservoir is designed for builders who demand the highest level of suspension control available. Built around a massive 3.0\" shock body, heavy-duty 1\" shaft, four externally adjustable bypass tubes, and an integrated piggyback reservoir, this shock is engineered for rock bouncers, Ultra4 race cars, desert race vehicles, competition crawlers, and high-horsepower off-road builds.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWhen suspension travel increases, tire sizes grow, and horsepower climbs, maintaining control becomes increasingly difficult. The Radflo 3.0 4-Tube Bypass Shock provides exceptional damping capacity and tuning flexibility, allowing builders to fine-tune suspension performance throughout the entire stroke.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe four external bypass tubes create multiple damping zones that help manage chassis movement, improve traction, reduce bottoming, and maintain stability during aggressive driving. Combined with the increased oil volume, \u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003ethe Radflo 3.0 4-Tube Bypass Shock delivers the suspension control serious drivers expect.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Radflo 3.0 4-Tube Bypass Shock \u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003ePiggyback Reservoir\u003c\/li\u003e\n\u003cli\u003eUniversal spherical bearings and mounting hardware\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003eAvailability Note:\u003c\/b\u003e \u003c\/span\u003eAs the #1 stocking warehouse for Radflo Performance Shocks, we maintain one of the largest inventories of Radflo coilovers and springs in the industry. While many popular shock configurations are available for immediate shipment, certain coilovers, custom valving packages, and special-order suspension components may require 4–6 weeks for production and delivery.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eNeed parts quickly? \u003cmeta charset=\"utf-8\"\u003e\u003cb style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003ca href=\"tel:615-962-9135\" title=\"Call Us: 615-962-9135\"\u003eCall us\u003c\/a\u003e \u003c\/b\u003efor current inventory availability and expert help selecting the right coilover shocks, springs, or suspension package for your build.\u003c\/p\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand: \u003c\/strong\u003eRadflo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Type:\u003c\/strong\u003e 4 Tube External Bypass with Piggyback Reservoir\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Diameter:\u003c\/strong\u003e 3.00\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravel Options: \u003c\/strong\u003e14\", 16\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 1.00\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod Material:\u003c\/strong\u003e Nitro Steel®\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e SSID Alloy Steel Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBypass Tubes:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston:\u003c\/strong\u003e Radflo Aluminum Freeflo® Racing Piston\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod Guide:\u003c\/strong\u003e CNC-Machined Bronze with PTFE Coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e Quad-Ring® and Lip Seal Combination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil:\u003c\/strong\u003e Radflo High-Temp Foam-Resistant Suspension Fluid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e 5\/8 Universal Spherical Bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Clear Cadmium Plated Body, Mirror-Polished Shaft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Caps \u0026amp; Eyelets:\u003c\/strong\u003e CNC-Machined 6061 Aluminum, Black Anodized\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValving Type:\u003c\/strong\u003e Velocity Sensitive Deflective Disc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValving Adjustment:\u003c\/strong\u003e Self-Adjusting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValving Tuning:\u003c\/strong\u003e Consumer or Factory Tunable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil:\u003c\/strong\u003e Radflo High-Temp Foam Resistant Suspension Fluid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressurization:\u003c\/strong\u003e Nitrogen Gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrogen Pressure:\u003c\/strong\u003e Starting at 200 PSI (application dependent)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServiceability: \u003c\/strong\u003eRebuildable and serviceable \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul\u003e\n\u003cli\u003eUniversal Fitment\u003c\/li\u003e\n\u003cli\u003eFront or rear suspension applications\u003c\/li\u003e\n\u003cli\u003eDesigned for custom off-road suspension systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003eRock Crawlers\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eTrail Rigs\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eJeep Suspension Builds\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eRock Bouncers\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eUltra4 Cars\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eCustom Tube Chassis Vehicles\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eOff-Road Race Vehicles\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eHigh-Performance Off-Road Builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Final tuning should be matched to vehicle weight, suspension geometry, and intended terrain\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eTech Insight\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003e1. What is the difference between a 3-tube and 4-tube bypass shock?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eA 4-tube bypass shock provides additional tuning zones throughout the suspension stroke, giving tuners more control over ride quality, chassis movement, bottom-out resistance, and overall suspension performance.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003e2. Why choose a 3.0 bypass shock instead of a 2.5?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe larger 3.0 shock body provides greater oil volume, increased damping capacity, and improved heat management, making it ideal for larger tires, heavier vehicles, longer travel suspension systems, and aggressive driving conditions.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003e3. What are the benefits of a piggyback reservoir?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eA piggyback reservoir increases oil capacity and cooling performance while eliminating external reservoir hoses, resulting in a cleaner and simpler installation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003e4. What vehicles are best suited for a Radflo 3.0 4-Tube Bypass Shock?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThese shocks are commonly used on rock bouncers, Ultra4 race cars, competition crawlers, desert race vehicles, and custom off-road builds requiring maximum suspension performance.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003e5. Are Radflo 3.0 4-Tube Bypass Shocks rebuildable?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eYes. Radflo bypass shocks are fully rebuildable and serviceable, allowing owners to maintain peak performance and make tuning adjustments as suspension needs evolve.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"Radflo Suspension","offers":[{"title":"14\"","offer_id":56214543892646,"sku":"7BP-403-00","price":1620.0,"currency_code":"USD","in_stock":true},{"title":"16\"","offer_id":56214543925414,"sku":"7BP-404","price":1620.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/files\/7BP40400-Radflo-3.0-16-Bypass-Shock-Piggyback-Reservoir-1-Shaft-4-Tube-1.jpg?v=1777914500","url":"https:\/\/wideopendesign.com\/products\/radflo-3-0-16-bypass-shock-with-piggyback-reservoir-1-shaft-4-tube","provider":"Wide Open Design","version":"1.0","type":"link"}