{"product_id":"build-fractal-series-leg-extension-leg-curl-new","title":"BUILT Strength Fractal Series Leg Extension \/ Leg Curl (New)","description":"\u003cstyle\u003e\n  .bs-wrap *{box-sizing:border-box;margin:0;padding:0}\n  .bs-wrap{font-family:'Barlow',sans-serif;color:#1a1a1a;max-width:700px}\n  .bs-badge{display:inline-block;background:#1a1a1a;color:#f0ebe3;font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:3px;margin-bottom:16px}\n  .bs-desc{font-size:15px;line-height:1.8;color:#444;margin-bottom:24px}\n  .bs-desc strong{color:#1a1a1a;font-weight:500}\n  .bs-divider{border:none;border-top:1px solid #e5e5e5;margin:24px 0}\n  .bs-section-label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#999;font-weight:500;margin-bottom:12px}\n  .bs-muscles{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}\n  .bs-muscle-tag{font-size:12px;font-weight:500;padding:5px 13px;border-radius:20px;background:#fff7ed;color:#92400e;border:1px solid #fcd9a0}\n  .bs-muscle-tag.sec{background:#f5f5f5;color:#666;border-color:#e0e0e0}\n  .bs-specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:24px}\n  .bs-spec-card{background:#f7f7f5;border-radius:8px;padding:14px 16px}\n  .bs-spec-label{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#999;margin-bottom:4px}\n  .bs-spec-val{font-family:'Barlow Condensed',sans-serif;font-size:20px;font-weight:600;color:#1a1a1a}\n  .bs-spec-sub{font-size:12px;color:#888;margin-top:3px}\n  .bs-feat{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-top:1px solid #efefef}\n  .bs-feat:last-child{border-bottom:1px solid #efefef}\n  .bs-feat-icon{width:30px;height:30px;border-radius:50%;background:#fff0f0;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}\n  .bs-feat-icon svg{width:14px;height:14px;stroke:#dc2626;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}\n  .bs-feat-name{font-size:14px;font-weight:500;color:#1a1a1a;margin-bottom:3px}\n  .bs-feat-desc{font-size:13px;color:#666;line-height:1.6}\n  .bs-span2{grid-column:span 2}\n\u003c\/style\u003e\n\u003cdiv class=\"bs-wrap\"\u003e\n\u003cp class=\"bs-desc\"\u003eThe BUILT Strength Fractal Series Leg Extension \/ Leg Curl combines seated quad isolation and hamstring development in a single 300 lb selectorized station — with a \u003cstrong\u003equick-switch mechanism that transitions between leg extensions and leg curls without changing the weight stack setting\u003c\/strong\u003e. Unilateral or bilateral training is available on both exercises, enabling single-leg work for addressing strength imbalances alongside standard bilateral loading.\u003c\/p\u003e\n\u003cp class=\"bs-desc\"\u003eSeat, backrest, and leg rollers all adjust independently to position any user correctly for both exercises before the first rep — \u003cstrong\u003e691 lb of commercial-grade construction\u003c\/strong\u003e keeps the machine planted and stable under maximum loading in both positions. New.\u003c\/p\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003eLeg extension — primary muscles\u003c\/p\u003e\n\u003cdiv class=\"bs-muscles\" style=\"margin-bottom: 10px;\"\u003e\n\u003cspan class=\"bs-muscle-tag\"\u003eQuadriceps\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag\"\u003eRectus Femoris\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"bs-section-label\"\u003eLeg curl — primary muscles\u003c\/p\u003e\n\u003cdiv class=\"bs-muscles\" style=\"margin-bottom: 10px;\"\u003e\n\u003cspan class=\"bs-muscle-tag\"\u003eBiceps Femoris\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag\"\u003eSemitendinosus\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag\"\u003eSemimembranosus\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"bs-section-label\"\u003eSecondary muscles\u003c\/p\u003e\n\u003cdiv class=\"bs-muscles\" style=\"margin-bottom: 0;\"\u003e\n\u003cspan class=\"bs-muscle-tag sec\"\u003eGastrocnemius\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag sec\"\u003eGlutes\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag sec\"\u003eHip Flexors\u003c\/span\u003e\n\u003c\/div\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003eKey features\u003c\/p\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cline x1=\"4\" y1=\"6\" x2=\"20\" y2=\"6\"\u003e\u003c\/line\u003e\u003cline x1=\"4\" y1=\"12\" x2=\"20\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"4\" y1=\"18\" x2=\"20\" y2=\"18\"\u003e\u003c\/line\u003e\u003ccircle cx=\"8\" cy=\"6\" r=\"2\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"16\" cy=\"12\" r=\"2\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"10\" cy=\"18\" r=\"2\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eQuick-Switch Mode Transition\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eA quick-switch mechanism converts the machine between leg extension and leg curl without changing the weight stack — seamless transitions that keep training intensity high between exercises without lengthy reconfiguration.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cline x1=\"3\" y1=\"12\" x2=\"21\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"3\" y1=\"12\" x2=\"9\" y2=\"6\"\u003e\u003c\/line\u003e\u003cline x1=\"3\" y1=\"12\" x2=\"9\" y2=\"18\"\u003e\u003c\/line\u003e\u003cline x1=\"21\" y1=\"12\" x2=\"15\" y2=\"6\"\u003e\u003c\/line\u003e\u003cline x1=\"21\" y1=\"12\" x2=\"15\" y2=\"18\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eUnilateral \u0026amp; Bilateral Training\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eBoth leg extension and leg curl can be performed unilaterally or bilaterally — single-leg work addresses strength imbalances and adds training variety, while bilateral loading supports standard progressive strength development.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cline x1=\"4\" y1=\"6\" x2=\"14\" y2=\"6\"\u003e\u003c\/line\u003e\u003ccircle cx=\"18\" cy=\"6\" r=\"2\"\u003e\u003c\/circle\u003e\u003cline x1=\"4\" y1=\"12\" x2=\"20\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"4\" y1=\"18\" x2=\"14\" y2=\"18\"\u003e\u003c\/line\u003e\u003ccircle cx=\"18\" cy=\"18\" r=\"2\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eAdjustable Seat, Backrest \u0026amp; Leg Rollers\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eThree independent adjustment points — seat, backrest, and leg rollers — position any user correctly for both exercises, maintaining proper hip angle and leg alignment for controlled, targeted muscle loading on every rep.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003crect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"3\" y1=\"9\" x2=\"21\" y2=\"9\"\u003e\u003c\/line\u003e\u003cline x1=\"9\" y1=\"21\" x2=\"9\" y2=\"9\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003e300 lb Stack · 691 lb Commercial Frame\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eA 300 lb selectorized stack covers the full training range for both exercises, and a 691 lb commercial-grade frame delivers the structural mass needed for stable, consistent performance under maximum loading in both positions.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003eSpecifications\u003c\/p\u003e\n\u003cdiv class=\"bs-specs-grid\"\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eDimensions (L × W × H)\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e61\" × 40\" × 58\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eMachine Weight\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e691 lb\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eWeight Stack\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e300 lb\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003ePin-select selectorized\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eCondition\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003eNew\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eFractal Series · BUILT Strength\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card bs-span2\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eFunctions \u0026amp; Adjustability\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003eLeg Extension · Leg Curl · Unilateral\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eQuick-switch mechanism · Adjustable seat, backrest \u0026amp; leg rollers · Bilateral \u0026amp; unilateral · 300 lb stack\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eFrame\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e11-Gauge (3mm) Steel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============================================================\nSEO FIELDS — paste these into Shopify's Search Engine Listing section\n============================================================\n\nPage title (max 60 chars):\nBUILT Strength Fractal Leg Extension Curl | New\n\nMeta description (max 160 chars):\nNew BUILT Strength Fractal Series Leg Extension\/Curl. 280 lb selectorized, quick-switch transition, unilateral or bilateral, 3-point adjustability, 691 lb commercial frame.\n\nTags (comma separated):\nFractal Series leg extension curl, selectorized leg extension curl, dual function leg machine, BUILT Strength, quick switch leg machine, unilateral leg extension, unilateral leg curl, 280lb leg machine, commercial leg machine, new gym equipment, quad hamstring machine, Fractal Series\n\n============================================================ --\u003e","brand":"BUILT Strength","offers":[{"title":"Default Title","offer_id":47730584518896,"sku":"GW1516","price":3795.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0510\/0981\/4682\/files\/MADE_TO_ORDER_32.png?v=1758305251","url":"https:\/\/www.buildagym.com\/products\/build-fractal-series-leg-extension-leg-curl-new","provider":"Build A Gym","version":"1.0","type":"link"}