Lock Jaw Olympic Collars

Name: Lock Jaw Olympic Collars
Brand: Lock-Jaw Collars
Rating: 4.57 (11 reviews)

The Lock-Jaw Olympic (OLY 2) is the original design in Lock-Jaw’s clamp-style collar lineup – a solid nylon resin frame with injection-molded elastomer pressure pads and an enlarged lever mechanism that clamps onto a standard 2” Olympic bar sleeve with one hand. Lock-Jaw markets it as the strongest and most convenient than the older-style spring-clip collars it replaces, and positions it as the general-purpose, everyday collar in its range – the company itself recommends the step-up Pro 2 model instead for bumper plates, CrossFit, or Olympic-style lifting.

Independent testing from King of the Gym backs up that everyday-use positioning: in a drop test the collar essentially didn’t move across six drops, and it showed only slight movement (1-3mm) under a static/ bodyweight vertical-hold test – a real-world result stronger than the numbers alone suggest. Reviewers describe one-hand on/off that stays easy without feeling stiff, calling it the kind of collar you stop thinking about during plate changes. It sits in the middle of Lock-Jaw’s own lineup: sturdier and more usable than the budget Sport/HEX models, but without the magnetic storage or secondary locking tab of the pricier Flex/Metal collars.

Colors	Black, Blue, Red
Weight	13 oz per pair (454g per collar)
Sold as	Pair
Material	Solid nylon resin frame with injection-molded elastomer pressure pads
Warranty	1-year commercial warranty against material and workmanship defects
Bar compatibility	2" inside diameter -- standard 2" Olympic bars only
Dimensions per collar	3.0"H x 3.5"W x 2.0"D

What is a Collar?

What barbell collars are

Collars (clips) lock the plates onto a barbell’s sleeves so they can’t slide or rattle off — a safety essential, especially for pressing and Olympic lifts. The common types: cheap spring clips, quick lock-jaw / quick-release collars (the everyday favorite — fast and secure), and competition collars (precision-weighted, 2.5 kg each, for calibrated meets).

What to look for

A secure clamp that won’t creep under drops or high reps, quick on-and-off operation, and a fit for your bar’s sleeve diameter (standard Olympic is 50 mm). For most home gyms, a pair of lock-jaw-style collars is the right balance of speed, grip, and price.

How it compares

	Lock Jaw Olympic Collars	ATX Magnetic Barbell Collars	Clout Fitness Olympic Barbell Clamps Collars	Eleiko Oppen Barbell Collars
GymRadar rating	4.57/5	4.56/5	4.58/5	4.53/5
Price	$39.95
Colors	Black, Blue, Red
Weight	13 oz per pair (454g per collar)	250 g per pair (2 x 125 g)		0.25 kg (0.55 lb) per collar, 0.5 kg (1.1 lb) per pair
Sold as	Pair		pair	pair
Material	Solid nylon resin frame with injection-molded elastomer pressure pads	Polyurethane (PU)	reinforced composite plastic with interior rubber lining	Aluminium casing with NBR rubber interior lining
Warranty	1-year commercial warranty against material and workmanship defects		lifetime replacement if the clamp breaks	1-year
Bar compatibility	2" inside diameter -- standard 2" Olympic bars only
Dimensions per collar	3.0"H x 3.5"W x 2.0"D

4.6/5 · 11 GymRadar reviews

Reviews by source

Expert	4.57/5	11 reviews
Youtube	4.0/5	3 reviews

The Lock-Jaw Olympic sits in a deliberate middle ground in Lock-Jaw’s own lineup, and independent testing backs that up: King of the Gym’s drop and vertical-hold tests found it held essentially still through six drops, with only a millimeter or two of shift under static/bodyweight stress – a stronger real-world showing than the numbers alone suggest. Build quality and everyday usability are the standout dimensions – one-hand on/off that stays easy without feeling stiff, and a “set it and forget it” feel during plate changes. Versatility is the weakest spot: the manufacturer itself steers buyers toward the Pro 2 model for bumper plates, CrossFit, or Olympic-style lifting, positioning the Olympic as a general-purpose garage-gym collar rather than a heavy-use one, and it skips the magnetic storage and secondary locking tab found on pricier Lock-Jaw models.

+Durability: basically didn't move across six drop tests, despite showing slightly more movement in the static vertical-hold test (King of the Gym)
+Functionality: one-hand installation and removal that stays easy without feeling stiff or annoying (King of the Gym)
+Build quality: solid nylon resin frame with injection-molded elastomer pressure pads and an enlarged lever mechanism (manufacturer, Iron Company)
+Value: $40 mid-tier price sits between budget composite collars and premium aluminum/magnetic models (King of the Gym)

−Versatility: manufacturer recommends the Pro 2 model instead for bumper plates, CrossFit, or Olympic lifting (manufacturer)
−Functionality: no magnetic storage and no secondary locking tab, unlike Lock-Jaw's Pro/Flex/Metal models (King of the Gym)
−Build quality: not the strongest holding collar in the Lock-Jaw lineup (King of the Gym)

$39.95

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