Compact Collars That Keep Plates Where You Put Them
Lock-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.
Small, 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.
Key Features
Built specifically for 1.9 inch diameter barbells and weight posts, not adapted from an Olympic collar.
A small body means you lose almost no loadable length on short weight posts.
Holds plates firmly in place so nothing shifts or rattles mid-set.
Designed for Profile Halo Arms and PRx Leg Curl and Leg Extension weight posts.
Fast to fit and release, so changing loads between sets is not a chore.
From the collar brand lifters already trust for everyday gym use.
Description
Weight 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.
Lock-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.
The 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.
One 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.
Specifications
| Specification | Detail |
|---|---|
| Fits | Barbells and weight posts with 1.9 inch diameters |
| Designed For | Profile Halo Arms; PRx Leg Curl / Leg Extension weight posts |
| Compatibility Note | Not compatible with Olympic barbell sleeves |
Ready to Build Your Dream Gym?
Our fitness experts are here to help you design the perfect setup for your space and goals. Schedule your free consultation today and let us bring your vision to life.
Lock-Jaw Axle Collars
Vendor: PRx Performance
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Compact Collars That Keep Plates Where You Put Them
Lock-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.
Small, 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.
Key Features
Built specifically for 1.9 inch diameter barbells and weight posts, not adapted from an Olympic collar.
A small body means you lose almost no loadable length on short weight posts.
Holds plates firmly in place so nothing shifts or rattles mid-set.
Designed for Profile Halo Arms and PRx Leg Curl and Leg Extension weight posts.
Fast to fit and release, so changing loads between sets is not a chore.
From the collar brand lifters already trust for everyday gym use.
Description
Weight 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.
Lock-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.
The 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.
One 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.
Specifications
| Specification | Detail |
|---|---|
| Fits | Barbells and weight posts with 1.9 inch diameters |
| Designed For | Profile Halo Arms; PRx Leg Curl / Leg Extension weight posts |
| Compatibility Note | Not compatible with Olympic barbell sleeves |
Ready to Build Your Dream Gym?
Our fitness experts are here to help you design the perfect setup for your space and goals. Schedule your free consultation today and let us bring your vision to life.