{"product_id":"onyx-biceps-curl","title":"ONYX Biceps Curl","description":"\u003c!-- Product Description --\u003e\n\u003cp\u003eThe ONYX Biceps Curl is a high-end plate-loaded strength machine engineered for targeted biceps development with smooth, controlled curling performance. Designed for large commercial gyms and premium personal training studios, its modern aesthetic and solid construction deliver reliable training quality for high-traffic environments.\u003c\/p\u003e\n\u003cp\u003eAdaptive dual-angle handles naturally follow the user’s wrist path during movement to reduce joint stress, while supporting multiple grip options from wide to narrow and supinated to neutral. A wide, ergonomically curved upper-arm pad provides stable, comfortable positioning across different shoulder widths, helping maintain strict curling form. The pneumatic, infinitely adjustable seat enables fast alignment for users of different heights, and a descending resistance curve matches the biceps’ natural strength arc—enhancing peak contraction and overall training effectiveness.\u003c\/p\u003e\n\n\u003cstyle\u003e\n.accordion-section {\n  margin-bottom: 10px;\n  border: 1px solid #ddd;\n  border-radius: 6px;\n  overflow: hidden;\n}\n.accordion-label {\n  display: block;\n  background-color: #f7f7f7;\n  padding: 12px;\n  font-weight: bold;\n  cursor: pointer;\n}\n.accordion-content {\n  max-height: 0;\n  overflow: hidden;\n  background: #fff;\n  padding: 0 12px;\n  transition: max-height 0.4s ease, padding 0.4s ease;\n}\ninput.accordion-toggle {\n  display: none;\n}\ninput.accordion-toggle:checked ~ .accordion-content {\n  max-height: 4000px;\n  padding: 12px;\n}\n.accordion-content ul {\n  margin: 0;\n  padding-left: 20px;\n  list-style-type: disc;\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"accordion-section\"\u003e\n  \u003cinput class=\"accordion-toggle\" id=\"accordion-onyx-biceps-curl-features\" type=\"checkbox\"\u003e\n  \u003clabel for=\"accordion-onyx-biceps-curl-features\" class=\"accordion-label\"\u003eKey Features\u003c\/label\u003e\n  \u003cdiv class=\"accordion-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePlate-Loaded Biceps Curl:\u003c\/strong\u003e Designed for strict arm training and focused biceps development.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAdaptive Dual-Angle Handles:\u003c\/strong\u003e Automatically follow natural wrist motion to reduce joint stress and improve comfort.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMultiple Grip Options:\u003c\/strong\u003e Wide-to-narrow grips and supinated-to-neutral positions support varied training goals.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWide Curved Arm Support Pad:\u003c\/strong\u003e Ergonomically contoured upper-arm pad stabilizes positioning across different shoulder widths.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePneumatic Infinite Seat Adjustment:\u003c\/strong\u003e Quick, precise height adjustment supports ideal posture alignment for users of different heights.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDescending Resistance Curve:\u003c\/strong\u003e Matches the biceps’ natural strength arc to enhance peak contraction and training effectiveness.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-section\"\u003e\n  \u003cinput class=\"accordion-toggle\" id=\"accordion-onyx-biceps-curl-training\" type=\"checkbox\"\u003e\n  \u003clabel for=\"accordion-onyx-biceps-curl-training\" class=\"accordion-label\"\u003eTraining Options\u003c\/label\u003e\n  \u003cdiv class=\"accordion-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBiceps Curl:\u003c\/strong\u003e Primary elbow flexion movement targeting biceps for size, strength, and definition.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eGrip Variation Training:\u003c\/strong\u003e Handle options allow different wrist\/forearm positions to shift training emphasis.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePeak Contraction Focus:\u003c\/strong\u003e Descending resistance curve supports stronger top-end contraction for improved activation.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eStrength \u0026amp; Hypertrophy Programming:\u003c\/strong\u003e Plate-loaded progression supports heavier sets and controlled volume training.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eArm-Day Accessory Work:\u003c\/strong\u003e Complements pulling routines and full upper-body strength programming.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-section\"\u003e\n  \u003cinput class=\"accordion-toggle\" id=\"accordion-onyx-biceps-curl-specs\" type=\"checkbox\"\u003e\n  \u003clabel for=\"accordion-onyx-biceps-curl-specs\" class=\"accordion-label\"\u003eProduct Specifications\u003c\/label\u003e\n  \u003cdiv class=\"accordion-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDimensions (L × W × H):\u003c\/strong\u003e 57.1 × 38.2 × 48.0 in\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eTotal Weight:\u003c\/strong\u003e 209 lb\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eResistance Type:\u003c\/strong\u003e Plate-loaded\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eTarget Muscle Groups:\u003c\/strong\u003e Biceps (primary), forearms (secondary)\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIntended Use:\u003c\/strong\u003e Commercial gyms and high-traffic training facilities\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-section\"\u003e\n  \u003cinput class=\"accordion-toggle\" id=\"accordion-onyx-biceps-curl-why\" type=\"checkbox\"\u003e\n  \u003clabel for=\"accordion-onyx-biceps-curl-why\" class=\"accordion-label\"\u003eWhy Choose ONYX\u003c\/label\u003e\n  \u003cdiv class=\"accordion-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003eAdaptive handle design reduces wrist stress for more comfortable, consistent curling\u003c\/li\u003e\n      \u003cli\u003eDescending resistance curve improves peak contraction for stronger biceps activation\u003c\/li\u003e\n      \u003cli\u003eCurved support pad promotes strict form and stable positioning\u003c\/li\u003e\n      \u003cli\u003eCommercial-grade construction built for high-frequency training environments\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"VO3 Fitness","offers":[{"title":"Default Title","offer_id":59780449468497,"sku":null,"price":2499.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/9418\/files\/ONYXBicepsCurl_2.png?v=1783632221","url":"https:\/\/spartanfitness.ca\/products\/onyx-biceps-curl","provider":"Spartan Fitness Equipment","version":"1.0","type":"link"}