
A lever, not a spring
The lever gives mechanical locking force well beyond what a spring or plastic collar can offer, and holds plates to the sleeve even under heavy impact loads. The handle is a T-bar on a threaded bolt.
Product Description
The LUXIAOJUN Lever Lock Competition Barbell Collar is built for athletes and spotters who need plates locked down fast and held tight. A lever mechanism delivers mechanical locking force well beyond what spring or plastic collars can offer, securing plates firmly to the barbell sleeve even under heavy impact loads.
A threaded screw mechanism closes the gap between plates and the sleeve, locking everything in place and cutting down on wobble or shifting during heavy lifts. Each collar is built from Q235B alloy steel and 304 stainless steel, with a hard chrome finish that resists corrosion and holds up over years of regular use.
Designed to fit standard 50mm barbell sleeves, this collar comes as a pair weighing 5kg total. Whether you're on the competition platform or training at home, the LUXIAOJUN Lever Lock Collar gives you a fast, secure lock you can trust under heavy loads. Backed by a lifetime warranty against manufacturing defects.
The lock, the gap and the finish.

The lever gives mechanical locking force well beyond what a spring or plastic collar can offer, and holds plates to the sleeve even under heavy impact loads. The handle is a T-bar on a threaded bolt.

A threaded screw mechanism closes the gap between the plates and the sleeve. That is what cuts down on wobble or shifting during heavy lifts.

Each collar is built from Q235B alloy steel and 304 stainless steel. The hard chrome finish resists corrosion and holds up over years of regular use.
What the collar is made of, and what it fits.
| Sold as | Pair, 2 collars |
|---|---|
| Pair weight | 5 kg (11 lb) |
| Sleeve fit | Standard 50 mm barbell sleeves |
| Locking | Lever mechanism |
| Gap closure | Threaded screw mechanism |
| Alloy steel | Q235B |
| Stainless steel | 304 |
| Finish | Hard chrome |
| Body | Hex, with a knurled ring |
Lifetime warranty against manufacturing defects.
Every LUXIAOJUN product carries a lifetime warranty against manufacturing defects. If a fault in materials or workmanship appears, we put it right for as long as you own the product.
The warranty covers how the product was made, not how it was used. Normal wear from training, cosmetic marks, and damage caused by misuse, modification, improper assembly or improper storage fall outside it.
To start a claim, contact us with your order number and photographs of the issue.
They are made to fit standard 50 mm barbell sleeves. Check the sleeve diameter on your own bar before you order.
The pair weighs 5 kg in total. Count that in when you add up what is loaded.
Two things. The lever locks the collar to the sleeve with force well beyond a spring or plastic collar, and a threaded screw closes the gap between the plates and the sleeve so there is less wobble or shifting under a heavy lift.
The hard chrome finish resists corrosion and holds up over years of regular use. Under it, each collar is built from Q235B alloy steel and 304 stainless steel.