{"product_id":"lock-jaw-axle-collars","title":"Lock-Jaw Axle Collars","description":"\u003cstyle\u003e\n.fs-section { margin: 40px 0; font-family: Arial, sans-serif; }\n.fs-section h2 { font-size: 28px; margin-bottom: 10px; color: #8B0000; }\n.fs-section h3 { font-size: 22px; margin-bottom: 10px; color: #222; }\n.fs-section p { font-size: 16px; line-height: 1.6; color: #333; }\n.fs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 15px; margin-top: 15px; }\n.fs-card { background: #f7f7f7; padding: 15px; border-radius: 6px; border: 1px solid #ececec; }\n.fs-highlight { background: #fafafa; padding: 20px; border-left: 5px solid #8B0000; margin-top: 20px; }\n.fs-list { columns: 2; margin-top: 10px; padding-left: 20px; }\n.fs-ratio-table { width: 100%; border-collapse: collapse; margin-top: 15px; font-size: 15px; }\n.fs-ratio-table th, .fs-ratio-table td { border: 1px solid #ddd; padding: 12px; text-align: left; }\n.fs-ratio-table th { background: #8B0000; color: #fff; }\n.fs-cta { background: #fafafa; padding: 20px; border-left: 5px solid #8B0000; margin-top: 30px; }\n.fs-cta a { color: #8B0000; font-weight: bold; text-decoration: underline; }\n@media(max-width:768px){ .fs-list { columns: 1; } .fs-section h2 { font-size: 24px; } }\n\u003c\/style\u003e\n\u003cdiv class=\"fs-section\"\u003e\n\u003ch2\u003eCompact Collars That Keep Plates Where You Put Them\u003c\/h2\u003e\n\u003cp\u003eLock-Jaw Axle Collars are purpose-built for 1.9 inch weight posts. They are the right collar for securing plates on Profile Halo Arms and PRx Leg Curl and Leg Extension weight posts, where a full-size Olympic collar simply will not fit.\u003c\/p\u003e\n\u003cp\u003eSmall, fast to clamp and secure under load, they are the detail that keeps a rack-mounted attachment feeling solid instead of rattling through every rep.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fs-section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"fs-grid\"\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eSized for 1.9\" Posts\u003c\/strong\u003e\u003cbr\u003eBuilt specifically for 1.9 inch diameter barbells and weight posts, not adapted from an Olympic collar.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eCompact Footprint\u003c\/strong\u003e\u003cbr\u003eA small body means you lose almost no loadable length on short weight posts.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eSecure Clamping\u003c\/strong\u003e\u003cbr\u003eHolds plates firmly in place so nothing shifts or rattles mid-set.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eMade for PRx Attachments\u003c\/strong\u003e\u003cbr\u003eDesigned for Profile Halo Arms and PRx Leg Curl and Leg Extension weight posts.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eQuick On and Off\u003c\/strong\u003e\u003cbr\u003eFast to fit and release, so changing loads between sets is not a chore.\u003c\/div\u003e\n\u003cdiv class=\"fs-card\"\u003e\n\u003cstrong\u003eLock-Jaw Quality\u003c\/strong\u003e\u003cbr\u003eFrom the collar brand lifters already trust for everyday gym use.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fs-section\"\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eWeight posts on rack attachments are not Olympic sleeves. They are narrower, they are shorter, and if you try to use a standard Olympic collar on one you will either find it does not fit at all or that it eats most of your loadable space. That is the gap these collars fill.\u003c\/p\u003e\n\u003cp\u003eLock-Jaw Axle Collars are made for 1.9 inch posts. On a set of Profile Halo Arms or a PRx Leg Curl and Leg Extension attachment, they clamp down on the plates and keep them there. No sliding, no clatter on the eccentric, no plate creeping off the end of a post during a hard set.\u003c\/p\u003e\n\u003cp\u003eThe compact body matters more than it sounds. Weight posts have limited length, and a bulky collar costs you plates you could otherwise be lifting. These take up minimal room while still locking down properly.\u003c\/p\u003e\n\u003cp\u003eOne important note before you order: these are not Olympic barbell collars. They will not fit the 2 inch sleeves on your barbell. If you need collars for a bar, look at the Lock-Jaw Oly 2 instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fs-section\"\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"fs-ratio-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eBarbells and weight posts with 1.9 inch diameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned For\u003c\/td\u003e\n\u003ctd\u003eProfile Halo Arms; PRx Leg Curl \/ Leg Extension weight posts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility Note\u003c\/td\u003e\n\u003ctd\u003eNot compatible with Olympic barbell sleeves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fs-cta\"\u003e\n\u003cp style=\"margin:0 0 8px;font-size:18px;\"\u003e\u003cstrong\u003eReady to Build Your Dream Gym?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;\"\u003eOur fitness experts are here to help you design the perfect setup for your space and goals. \u003ca href=\"https:\/\/fitnesssupply.com\/pages\/consultation-request\"\u003eSchedule your free consultation today\u003c\/a\u003e and let us bring your vision to life.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"PRx Performance","offers":[{"title":"Default Title","offer_id":62856949891231,"sku":"PX723","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/0871\/0559\/files\/974c973d-075a-4f0f-8059-8b2be9b25862.jpg?v=1788211293","url":"https:\/\/fitnesssupply.com\/ja\/products\/lock-jaw-axle-collars","provider":"Fitness Supply","version":"1.0","type":"link"}