{"product_id":"life-fitness-signature-series-calf-extension-remanufactured","title":"Life Fitness Signature Series Calf Extension (Remanufactured)","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 Life Fitness Signature Series Calf Extension delivers \u003cstrong\u003e390 lb selectorized stack with 5, 10, or 15 lb increment options, gas-assisted seat adjustment, military-spec 7×19 strand cable, sealed-bearing fiberglass pulleys, and 11-gauge steel frame\u003c\/strong\u003e — the three increment options (5, 10, or 15 lb) are the standout specification for a calf machine: the calves are typically trained at higher rep ranges than other muscle groups, and the difference between 5 lb and 15 lb increments matters significantly at the lighter end of the stack where most users work. A 5 lb increment system allows fine-grained progressive overload in the 20–50 lb working range that many users operate within; a 15 lb increment at the same range represents a 30% jump between steps, which is too coarse for consistent progression. The 390 lb stack accommodates the full range from light rehabilitation through heavy progressive calf loading.\u003c\/p\u003e\n\u003cp class=\"bs-desc\"\u003eGas-assisted seat adjustment for quick setup. Thermo rubber non-slip hand grips. 7×19 mil-spec cable construction. Sealed-bearing pulleys. Electrostatic powder coat. \u003cstrong\u003e700 lb total unit weight (includes 390 lb stack)\u003c\/strong\u003e, 62\" × 40\" footprint. Remanufactured.\u003c\/p\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003ePrimary muscles targeted\u003c\/p\u003e\n\u003cdiv class=\"bs-muscles\" style=\"margin-bottom: 10px;\"\u003e\n\u003cspan class=\"bs-muscle-tag\"\u003eGastrocnemius\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag\"\u003eSoleus\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\"\u003eTibialis Posterior\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag sec\"\u003ePeroneals\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag sec\"\u003eFlexor Hallucis Longus\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=\"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\"\u003e5, 10, or 15 lb Increments · 390 lb Stack — Fine-Grained Calf Progression\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eThree increment options accommodate different progressive loading needs — 5 lb increments enable fine-grained overload in the lighter working ranges where most calf training occurs, where a 15 lb jump would represent a 30%+ step between settings. 390 lb stack covers the full range from rehabilitation through heavy progressive calf loading without hitting a ceiling.\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\u003cpath d=\"M12 2l8 4v6c0 5-4 9-8 10-4-1-8-5-8-10V6l8-4z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eMilitary-Spec 7×19 Cable · Sealed Pulleys · 11-Gauge Steel\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003e7×19 strand lubricated nylon-coated cable — seven groups of nineteen wires — provides durability and flexibility for the calf extension range of motion. Fiberglass-impregnated nylon pulleys with sealed bearings maintain smooth operation without maintenance. 11-gauge steel frame with electrostatic powder coat handles the loading and repetition demands of commercial calf training.\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=\"12\" y1=\"3\" x2=\"12\" y2=\"21\"\u003e\u003c\/line\u003e\u003ccircle cx=\"12\" cy=\"8\" r=\"2\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"12\" cy=\"16\" r=\"2\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eGas-Assisted Seat Adj. · Thermo Rubber Grips\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eGas-assisted springs make seat adjustment quick and effortless between users of different heights — no manual resistance to overcome during repositioning. Thermo rubber hand grips are non-absorbing and wear-resistant, maintaining grip security through sweat without degrading over high-rep commercial use.\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\"\u003e62\" × 40\" × 64\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eUnit Weight (incl. stack)\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e700 lb Total\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003e390 lb stack included\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eWeight Stack \u0026amp; Increments\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e390 lb · 5\/10\/15 lb\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eThree increment options · Gas-assisted seat · Mil-spec cable\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\"\u003eRemanufactured\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eLife Fitness Signature · \u003ca href=\"https:\/\/ctxhomegyms.com\/pages\/what-is-refurbished\" style=\"color: #888; text-decoration: underline;\"\u003eView condition details\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card bs-span2\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eDesign\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e390 lb · 5\/10\/15 lb Steps · Gas Seat · Mil-Spec Cable\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003e390 lb selectorized · 5\/10\/15 lb increments · Gas-assisted seat · 7×19 mil-spec cable · Sealed-bearing pulleys · 11-gauge steel · Thermo rubber grips · 700 lb total unit weight\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):\nLife Fitness Signature Calf Extension | Remanufactured\n\nMeta description (max 160 chars):\nRemanufactured Life Fitness Signature Calf Extension. 390 lb stack, 5\/10\/15 lb increments, gas seat, mil-spec cable, 700 lb commercial calf machine, 62×40\" footprint.\n\nTags (comma separated):\nLife Fitness Signature calf extension, calf extension remanufactured, 390lb calf machine, 5lb increment calf, gas assisted calf machine, military spec cable calf, Life Fitness Signature, commercial calf extension, selectorized calf extension, remanufactured calf extension\n\n============================================================ --\u003e","brand":"Life Fitness","offers":[{"title":"Default Title","offer_id":50274155036912,"sku":"LF-CALF-EXT","price":2495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0510\/0981\/4682\/files\/calf_extension__1024.png?v=1787246100","url":"https:\/\/ctxhomegyms.com\/es\/products\/life-fitness-signature-series-calf-extension-remanufactured","provider":"CTX Home Gyms","version":"1.0","type":"link"}