{"product_id":"selectorized-leg-extension-prone-leg-curl-combo-w-250lb-weight-stack-new","title":"SFE Commercial Leg Extension \u0026 Prone Leg Curl Combo with 250lb Weight Stack","description":"\u003ch2 data-path-to-node=\"0\"\u003eHeavy-Duty 11-Gauge Structural Steel Dual-Function Lower Body Station, Adjustable Range-of-Motion Cam, Variable Roller Pad Settings, and Air-Cooled Protective Weight Shrouds\u003c\/h2\u003e\n\u003cp data-path-to-node=\"1\"\u003eDevelop powerful, sculpted quadriceps and deep, thick hamstrings with the institutional-grade performance of the \u003cb data-path-to-node=\"1\" data-index-in-node=\"113\"\u003eSFE Commercial Leg Extension \u0026amp; Prone Leg Curl Combo\u003c\/b\u003e. Custom-engineered to maximize training efficiency while saving valuable gym floor space, this dual-function machine houses two essential lower-body movements inside one rugged frame. By switching from an upright seated leg extension to a flat, prone leg curl in seconds, it lets athletes target their entire lower-body anatomy with total mechanical precision.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eThe structural foundation is fabricated from \u003cb data-path-to-node=\"2\" data-index-in-node=\"45\"\u003eheavy-duty 11-gauge structural steel tubing\u003c\/b\u003e, protected by a scratch-resistant matte black electrostatic powder-coat finish. Tucked securely behind sleek, high-impact weight shrouds, the \u003cb data-path-to-node=\"2\" data-index-in-node=\"231\"\u003esingle selectorized 250lb solid-steel weight stack\u003c\/b\u003e glides silently on precision-ground guide shafts. Using high-tensile, self-lubricating military-grade steel-core cables and friction-free commercial pulleys, the machine balances heavy resistance capacity with an incredibly smooth, joint-friendly range of motion.\u003c\/p\u003e\n\u003cdiv class=\"attachment-container search-images\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003cdiv class=\"image-container spark-licensed-center hide-from-message-actions ng-star-inserted\" data-full-size-image-uri=\"https:\/\/sportsandfitnessexchange.com\/cdn\/shop\/files\/81xcw0w0cXL._AC_SX679.jpg?v=1735670723\u0026amp;width=1214\"\u003e\n\u003cdiv class=\"overlay-container hero-overlay-container ng-star-inserted\"\u003e\n\u003c!----\u003e\u003cbr\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003cdiv class=\"hero-caption-row ng-star-inserted\"\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003ch3 data-path-to-node=\"5\"\u003eKey Product Features \u0026amp; Core Engineering\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003eTwo-In-One Lower Body Station:\u003c\/b\u003e Seamlessly transition between seated leg extensions (isolating the quadriceps) and prone leg curls (targeting the hamstrings) on a single compact chassis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eSolid-Steel 250lb Selectorized Stack:\u003c\/b\u003e Equipped with a single, heavy-duty 250lb weight stack featuring a magnetic-latching selector pin to handle heavy, high-capacity lower-body training.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eAdjustable Range-of-Motion Cam:\u003c\/b\u003e Features an intuitive, multi-position adjustment dial to easily customize starting angles, protecting user joints and accommodating differing flexibility levels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cb data-path-to-node=\"6,3,0\" data-index-in-node=\"0\"\u003eHeavy-Duty 11-Gauge Steel Frame:\u003c\/b\u003e Fabricated using industrial-grade structural steel tubing (\u003cspan class=\"math-inline\" data-math=\"50\\text{mm} \\times 100\\text{mm} \\times 3\\text{mm}\" data-index-in-node=\"92\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e50\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003emm\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mbin\"\u003e×\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e100\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003emm\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mbin\"\u003e×\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e3\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003emm\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e) to guarantee total frame stability under heavy workloads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,4,0\"\u003e\u003cb data-path-to-node=\"6,4,0\" data-index-in-node=\"0\"\u003eSelf-Aligning Ankle Roller Pad:\u003c\/b\u003e The padded lower roller automatically adjusts to individual leg lengths, ensuring consistent pressure and safe biomechanics throughout the full extension or curl.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,5,0\"\u003e\u003cb data-path-to-node=\"6,5,0\" data-index-in-node=\"0\"\u003eHigh-Density Sweat-Proof Cushioning:\u003c\/b\u003e Ergonmically contoured bench pads are stuffed with thick, PAHs-certified non-toxic foam covered in double-stitched, sweat-proof composite leather.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"8\"\u003eTechnical Specifications Summary\u003c\/h3\u003e\n\u003cdiv class=\"horizontal-scroll-wrapper\"\u003e\n\u003cdiv class=\"table-block-component\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003cdiv class=\"table-block has-export-button new-table-style is-at-scroll-start is-at-scroll-end\"\u003e\n\u003cdiv class=\"table-content\"\u003e\n\u003ctable data-path-to-node=\"9\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"9,0,0,0\"\u003eFeature \/ System Metric\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"9,0,1,0\"\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,1,0,0\"\u003e\u003cb data-path-to-node=\"9,1,0,0\" data-index-in-node=\"0\"\u003eBrand \/ Manufacturer\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,1,1,0\"\u003eSports \u0026amp; Fitness Exchange (SFE) — Commercial Strength Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,2,0,0\"\u003e\u003cb data-path-to-node=\"9,2,0,0\" data-index-in-node=\"0\"\u003eModel Classification\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,2,1,0\"\u003e\u003cb data-path-to-node=\"9,2,1,0\" data-index-in-node=\"0\"\u003eSFE Commercial Leg Extension \u0026amp; Prone Leg Curl Combo (New)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,3,0,0\"\u003e\u003cb data-path-to-node=\"9,3,0,0\" data-index-in-node=\"0\"\u003eFrame Construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,3,1,0\"\u003eHeavy-Duty 11-Gauge Structural Steel Tubing (Institutional Quality)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,4,0,0\"\u003e\u003cb data-path-to-node=\"9,4,0,0\" data-index-in-node=\"0\"\u003eWeight Stack Class\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,4,1,0\"\u003eSingle Selectorized Weight Stack \/ \u003cb data-path-to-node=\"9,4,1,0\" data-index-in-node=\"35\"\u003e250 lbs (113 kg) Total Resistance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,5,0,0\"\u003e\u003cb data-path-to-node=\"9,5,0,0\" data-index-in-node=\"0\"\u003eTransmission Cable\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,5,1,0\"\u003eSelf-Lubricating High-Tensile Anti-Friction Aviation Steel Cable\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,6,0,0\"\u003e\u003cb data-path-to-node=\"9,6,0,0\" data-index-in-node=\"0\"\u003ePulleys Assembly\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,6,1,0\"\u003eHeavy-Duty Deep-Groove Pulleys with Sealed Internal Ball Bearings\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,7,0,0\"\u003e\u003cb data-path-to-node=\"9,7,0,0\" data-index-in-node=\"0\"\u003eUpholstery \u0026amp; Padding\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,7,1,0\"\u003eTear-Resistant Double-Stitched PU Leather over High-Density Core Foam\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,8,0,0\"\u003e\u003cb data-path-to-node=\"9,8,0,0\" data-index-in-node=\"0\"\u003eAdjustment Controls\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,8,1,0\"\u003eMulti-Angle Range-of-Motion Dial \u0026amp; Variable Telescoping Pad Lengths\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,9,0,0\"\u003e\u003cb data-path-to-node=\"9,9,0,0\" data-index-in-node=\"0\"\u003eStability Anchors\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,9,1,0\"\u003eIntegrated Stabilizing Foot Grips \u0026amp; Non-Slip Steel Hand Rails\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,10,0,0\"\u003e\u003cb data-path-to-node=\"9,10,0,0\" data-index-in-node=\"0\"\u003eFrame Finish\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"9,10,1,0\"\u003eScratch-Resistant Matte Black Electrostatic Baking Powder Coat\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-footer hide-on-print hide-from-message-actions\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003cbutton class=\"mdc-icon-button mat-mdc-icon-button mat-mdc-button-base mat-badge mat-unthemed mat-badge-overlap mat-badge-above mat-badge-after mat-badge-small mat-badge-hidden ng-star-inserted\" aria-label=\"More options\"\u003e\u003cspan class=\"mat-mdc-button-persistent-ripple mdc-icon-button__ripple\"\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003cspan class=\"mat-focus-indicator\"\u003e\u003c\/span\u003e\u003cspan class=\"mat-mdc-button-touch-target\"\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eComprehensive Product Packaging List\u003c\/h3\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e1 × SFE Commercial Leg Extension \u0026amp; Prone Leg Curl Combo Main Frame and Tower Assembly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e1 × Selectorized 250lb Solid-Steel Weight Stack Block (With Internal Guide Rods \u0026amp; Magnetic Pins)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e1 × High-Density Contour Bench Seat, Backrest, and Thigh Support Pad Assembly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e1 × Adjustable Ankle Roller Pad Assembly with Telescoping Dial\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e1 × Master Bolt Pack, Heavy-Duty Washers, Frame Brackets, and Structural Installation Manuals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"14\"\u003eCritical Field Installation \u0026amp; Operational Guidelines\u003c\/h3\u003e\n\u003cul data-path-to-node=\"15\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,0,0\"\u003e\u003cb data-path-to-node=\"15,0,0\" data-index-in-node=\"0\"\u003eLevel Base Alignment:\u003c\/b\u003e Assemble the combo machine on a completely flat, level surface. If building it on gym tile or garage concrete, lay down high-density rubber protective tiles first. Hand-tighten all joint brackets until the frame is fully upright and square, then tighten all structural bolts down—this prevents frame twisting and guarantees smooth weight stack alignment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,1,0\"\u003e\u003cb data-path-to-node=\"15,1,0\" data-index-in-node=\"0\"\u003eGuide Rod Maintenance Routine:\u003c\/b\u003e Keep the twin solid-chrome guide rods completely clean of sweat, dust, and gym chalk. Wipe them down once a month with a dry microfibre towel, then apply a thin layer of 100% dry silicone spray lubricant. Avoid using sticky, wet greases or WD-40, which can trap abrasive dirt and slow down the weight plates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,2,0\"\u003e\u003cb data-path-to-node=\"15,2,0\" data-index-in-node=\"0\"\u003eAnkle Roller Calibration:\u003c\/b\u003e Before initiating your workout, adjust the ankle roller length to rest comfortably just above your shoe line. When switching from extensions to curls, use the central pull-pin dial to reposition the pivot arm, ensuring the cable maintains its mechanical advantages and pulls smoothly without dragging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sports \u0026 Fitness Exchange","offers":[{"title":"Default Title","offer_id":52678819741983,"sku":"GC-5058","price":2199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/9221\/1999\/files\/81xcw0w0cXL._AC_SX679.jpg?v=1784046181","url":"https:\/\/www.infinityhealthandwellness.com\/products\/selectorized-leg-extension-prone-leg-curl-combo-w-250lb-weight-stack-new","provider":"Infinity Health and Wellness","version":"1.0","type":"link"}