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Last updated: 26 Oct 2020

9 Best Barbell Collars (Review) in 2021

Ben Coleman
Your guide to this article today is by fitness expert Ben Coleman
Published November 29, 2018

We’ve selected the very best barbell collars to enhance your workout, keep your regimen safe, and allow you to get the best possible training in. We cover the cream of the crop, but we’re also going to tell you what sets them apart from each other, and how they made our elite list.

The Best Barbell Collar

1
Greententljs Olympic Barbell Lockjaw Collars

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greententljs olympic barbell lockjaw collars
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greententljs olympic barbell lockjaw collars
greententljs olympic barbell lockjaw collars
greententljs olympic barbell lockjaw collars
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Greententljs created one of the best barbell collars we’ve ever tested. You see products priced this low and think, “There has to be some catch, something wrong with it.” Nothing could be further from the truth. Not only do Greententljs Olympic Barbell Lockjaw Collars create an ironclad grip, but they’re doubly reinforced by the steel skeleton and high-density rubber grips along the interior. While they keep the exterior crafted out of ABS plastic for customization, they will get scratched up after a few trips to the gym (which doesn’t impede upon their function). You’ll want to ensure the screws are tightened properly each time you go to use these, but with a bit of attention, you’ll have these inexpensive barbell collars for well over a decade. For more amazing fitness accessories, check out our guide to the best knee sleeves.

Key Features:

Crafted of ABS plastic, steel, and rubber

Designed to work well with CrossFit

Available in eleven colors and two sizes

Specification:
  • BrandGreententljs
  • Weight10.4 ounces
Pros

High-density, wide rubber interior grips hold onto the bar with ease

Average user lifespan of ten years

Cons

ABS exterior gets scratched up very easily

Requires tightening after every tenth use

2
Clout Fitness Quick Release Barbell Collar

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Clout Fitness Quick Release Barbell Collar
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If you use an Olympic bar, you need a pair of these 2” collars from Clout Fitness. They are a fantastic upgrade from the grip clamps that come with most Olympic bars because they are super lightweight (so you can be more accurate with your weights), they’re easy-to-open, and they stay closed when you need them to. The rubber pads on this inside create the perfect amount of friction on the bar to stop weights from sliding off. In fact, they’re designed for exercises where the weight is dropped or the weights are taken vertically. Plus, they have stainless-steel pins that aren’t prone to wear and tear meaning that these clamps will last for years (if not decades). These clamps are used in both professional and home-gym setups around the world, so they should be perfect for your weightlifting setup. 

Key Features:

Fits Olympic-sized bars 

2” diameter 

High-quality rubber pads 

Stainless steel pins 

Fast quick-release clamp 

Available in 10 colors

Specification:
  • BrandClout Fitness
  • Weight11.7 ounces
Pros

High-quality materials and construction

Easy to put on and take off 

Available in different colors 

Cons

Some customers only received one

3
Lock-Jaw OLY 2 Olympic Barbell Collar

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Lock-Jaw OLY 2 Olympic Barbell Collar
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Lock-Jaw made a lockjaw barbell collar. Fitting, right? They took their time to ensure this was the best it could be but unfortunately fell short on a few key features. We’re big fans of the maximum surface traction thanks to the interior rubber padding. This helps prevent scuffs or scrapes to the barbell, which can be a Godsend if you’re using public equipment. However, this is a short-term investment. You’ll have these for an average of two years before the hinge rods are a bit too loose to be of use to you. On that note, they’ll need to be tightened fairly frequently to upkeep performance. You’ll get your use out of them for the price you pay, but keep in mind that Lock-Jaw OLY 2 Olympic Barbell Collar exclusively work on 2” Olympic barbells, nothing less. If you are a fitness enthusiast, be sure to check out our reviews of the best rowing machines.

Key Features:

Available in six different styles

Primary ABS plastic construction

Designed to fit 2” Olympic barbells

Specification:
  • BrandLock-Jaw Barbell Collars
  • Weight8.8 ounces
Pros

Large rubber grip surface

Prevents damage to barbells

Cons

Hinge rods need to be tightened fairly often

Short life expectancy of two years

4
Dreampark Barbell Collar

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dreampark barbell collar
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This pair of Dreampark Barbell Clamps are designed to fit bars with a diameter of one-inch. As one of the most affordable pairs of clamps on the market, we were interested to see whether the construction and materials would match up to this product’s reputation. Made from ABS plastic, with stainless steel pins and rubber inserts, they do a fantastic job of keeping weights on the bar. We were seriously impressed with the quality, which makes them a fantastic alternative to the low-quality grip clamps that come with most weight bars. They’re also much easier to take on and off. Just pull the quick-release level to open and shut it down again to close. 

Key Features:

One-inch diameter 

Made from ABS plastic 

Stainless-steel pins 

Rubber inserts 

Quick-release clamp 

Available in four colors

Specification:
  • BrandDreampark
  • Weight4.8 ounces
Pros

Competitively priced 

High-quality materials 

Available in different colors 

Cons

Don’t fit all one-inch bars

5
Iron Lab Olympic Barbell Collars

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iron lab olympic barbell collars
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You’ll hear us rant about nylon in the buying guide below, but Iron lab did something completely different. This is a highly durable compressed, hardened nylon. That being said, they didn’t include a steel skeleton, so it still remains as breakable as plastic. One of our favorite features is the bright red release tab, allowing you to pop this off of your barbell without any hassle whatsoever. This is especially useful if you’re bringing your own to the gym. Iron Lab did a fantastic job at designing the rubber grip pad. We were hesitant based on its narrowness but were pleasantly surprised to find that nothing is going to budge on Iron Lab Olympic Barbell Collars. As an added bonus they also include a lifetime warranty. Once a customer, always a member of the Iron Lab family. Find more great products like this by checking out our guide to the best weightlifting belts.

Key Features:

Designed for use on 23” Olympic barbells

Available in five different colors

Lifetime warranty

Specification:
  • BrandIron Lab
  • Weight7.2 ounces
Pros

Quick and simple red release tab for fast removal

Internal rubber grip keeps its place when on the barbell

Cons

Made of nylon (compressed, harended nylon)

Wears down/shows finger oil marks and smoothening after light use

6
Barbell Collar Clamps by Dark Iron Fitness

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barbell collar clamps, by dark iron fitness
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It doesn’t get any more simplistic than this. Dark Iron Fitness created these ultra simple Barbell Collar Clamps: you slip them on, turn the lever ninety degrees, and you’re locked and loaded. Apart from them making it easy to use, it’s also enormously inexpensive. That comes at a cost, however: you’ll expect to get about two years of use out of this, and the manufacturing process is rough. There will likely be sharp juts of plastic that may need to be smoothed out, but it serves its purpose well. The good thing about that is you can enact your lifetime warranty. So long as you register your collars within a week of purchase, you’ll be able to get free replacements for life should they break down on you. 

Key Features:

Designed to work with 1” and 2” barbells

Lifetime replacement policy

Extremely lightweight construction, adds almost no weight to a gym bag

Specification:
  • BrandDark Iron Fitness
  • Weight11.2 ounces
Pros

Simple and effective pull-lever design

The most inexpensive option on our list

Cons

Rough manufactured construction; sharp edges are common

Average two-year lifespan

7
Clout Fitness Quick Locking Olympic Barbell Collar

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clout fitness quick locking olympic barbell collar
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While plastic isn’t our first choice for quality barbell collars, we were blown away after testing Clout’s Quick Locking Caps. First and foremost, these are super simple to use, partially thanks to the textured thumb grips on the release latches. These pop off and on like it’s nothing, and you have to fall in love with the ease of use. Clout did fall a bit short on the lack of an internal steel frame like most plastic-encased models have; these are straight ABS plastic, and as such, are prone to breaking far more easily. That being said, you’ll still be able to pop them on a 2” Olympic barbell with no problem. The only metal found in these are in the aluminum hinges, which help keep that tension when these caps are closed. They are perfect to always have in your gym bag.

Key Features:

Available in nine different colors

Designed for 2” Olympic barbells

Durable aluminum hinges swing easily

Specification:
  • BrandClout Fitness
  • Weight9.6 ounces
Pros

Quick release latch doesn’t require much pressure to activate

Textured thumb grip for simple operation

Cons

Only ABS plastic, no internal frame

Easier to break than other barbell clamps

8
CAP Barbell Spring Clip Collars

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cap barbell spring clip collars
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We all know CAP, the creators of budget-friendly home gym equipment. Barbell Spring Clip Collar is one of their diamonds in the rough: a simple, no-frills collar that gets the job done. We’re not here for style points; it’s all about function, and CAP delivers. These are crafted out of full stainless steel, providing a longer use on the coil, destined to last for a decade if you let them. The only thing that isn’t going to last that long is the luster on those levers. While the grips are nice, they will show wear and tear from sweat and finger oil after a few uses. The aesthetics don’t exactly hold up when it comes to the chrome plating, either. While they’ll look weather before long, we consider them battle scars. CAP won’t leave you hanging. Our handy guide to the best weightlifting gloves features more great options like this.

Key Features:

Lightweight build (less than a pound between both collars)

Designed to fit a 2” Olympic barbell

Full stainless steel construction promotes longevity

Specification:
  • BrandCAP Barbell
  • ModelOC-06A
  • Weight1.1 pounds
Pros

Handles/levers are comfortable to the touch

The most inexpensive, quality barbell collars you’ll ever own

Cons

Levers show oil/sweat wear and tear after brief use

Chrome plating scratches easily

9
iHeartSynergee Locking Olympic Barbell Collars

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iheartsynergee locking olympic barbell collars
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Last but not least, we have this little gem. Few inexpensive barbell collars will have tension and pressure like these. You get a full aluminum construction, ensuring a long lifespan on these collars, while also resisting rust and standard wear and tear damage. The latch on iHeartSynergee Locking Olympic Barbell Collars is very powerful, which is both good and bad. Great tension, a rapid release that’s a bit startling. Our only major complaint with iHeartSynergee’s product is that they added unnecessary bits of aluminum all over, jacking up the cost a bit. At the end of the day, these will accompany you to and from the gym without issue. If you were to run into an issue, the manufacturer offers a money-back, product replacement guarantee. Check out our guide to the best workout clothes and make sure you feel comfortable while exercising.

Key Features:

Designed to fit most 2” Olympic barbells

Available in three different color options

Money-back and product replacement guarantee

Specification:
  • Brandiheartsynergee
  • Weight13.4 ounces
Pros

High-grade aluminum construction is built to last for a decade or more

Powerful locking latch maintains great pressure

Cons

Unnecessary additional materials (spiral joints) hike up the cost

Latch lock unhinges wildly during removal

Barbell Collar Buying Guide and FAQ

There’s more than meets the eye when it comes to weight collars. We’ve outlined and showcased the best of the best, but now it’s time to find out what makes these Olympic bar collars tick. From materials to different locking mechanism styles, it’s all here to help you make a more informed decision.

best barbell collars

Features to Look for in Barbell Collars

Material - Olympic barbell collars need durable materials to withstand pressure and stress. You’ll find a blend of steel, rubber, and either ABS plastic or nylon for the exterior (much like our top pick on this list). One key note to be on the lookout for is the rubber type. You want high-density rubber to help prevent wear and tear, and last just as long as the rest of your clamps. For steel, look for stainless or 316L (aircraft grade).

Shape - This is half about preference, half about function. Olympic bar clamps are traditionally hexagonal, which gives you more power and gripping points when trying to snap them onto a barbell. Pay attention to the shape of the actual clamp locks as well to make it easier for the application.

Size - Weight bar collars come in various sizes, fitting to different barbells. If this is for your home gym, look at the manufacturer of your barbell, and try to find out if the brand of weight collar you’re interested in is compatible with that brand.

Capacity - Weight clamps only have so much capacity, and can only undergo so much physical stress. You’ll be using this repeatedly, day in, day out, so it needs to be able to withstand the test of time. For the best results, try only meeting 80% or less of the maximum capacity to ensure longevity for your barbell collars.

Types of Barbell Collars

Standard Spring Clamps - You’ll know it when you see it: two pressure-activated prongs relieve tension on the spring, allowing your barbell to fit inside of it. When you release those prongs or lever heads, the pressure of the tightly-wound spring keeps it on your barbell. These are one of the most common and inexpensive barbell cap types on the market, though they do wear down with time.

Lockjaw Clamps - These are one of the most commonly used barbell collars due to their inexpensive cost and relatively easy use. You can attach these quickly, pressing down on the latch to apply enough pressure and essentially snap the clamp onto the barbell. They’re even easier to take off, and tend to last a very long time.

Power Clamps - Similar to standard spring clamps, these are basically supercharged versions of spring clamps that are far easier to put on.

Hex Screw Clamps - These take a bit more time to put on, but can practically impale upon the barbell, keeping it in place (don’t worry, they won’t damage the barbell). You use a simple hex screw to twist and apply pressure onto the barbell after sliding the clamp on, eff

Spring Lock Clamps - A perfect hybrid of standard spring clamps and lockjaw clamps. These use the force and power of wound springs, with the ease of use that lockjaw clamps offer. Because these two technologies are brought together, you can expect to see slightly higher prices,  but the lockjaw clamps do help to protect the springs from wear and tear, making these some of the longest-lasting barbell collar varieties you will ever own.

Nylon - These are usually a simple, rugged nylon exterior with velcro on the inside. These are cheap, and that’s one of the only reasons that people use these. There are very few exceptions to the rule, and most professional bodybuilders stay away from nylon collars.

best barbell collars

Barbell Collars FAQ

Q: What is a Barbell Collar?

A: Barbell collars are a little piece of added insurance on your Olympic weightlifting benches. When you place the weighted plates on either end of your barbell, you might have hex caps to keep them in place or another system. Barbell collars provide additional stability that most inclusive hex caps just can’t offer.

They’re not necessary if you’re benching under 100 lbs. These work to help retain stabilization when you have much heavier plates on either end, maintaining your safety and balance. Think of them as kickstands, keeping up the weight of a motorcycle to ensure it stays exactly where it’s supposed to. Olympic weightlifters use barbell collars in competitions on a regular basis, and they can be used in a home gym to help provide peace of mind and a safe workout environment.

Q: Which type of Barbell Collars Should I Buy?

A: So long as it does its job effectively, all types are viable options (except for nylon, but we’ll get into that in a moment). You could go with a lockjaw collar for a quicker time putting it on and taking it off, you could get a standard spring collar for its simplicity and low price. Your weight lifting collars should meet the weight requirements that you’re looking for as your first criteria.

Regardless of what type you prefer, the best barbell collars are designed to withstand massive weight and pressure. We personally recommend lockjaw collars for ease of use and extended durability. Spring lock clamps are also an excellent option.

Q: How Much do Barbell Collars Weigh?

A: Bar clamps are designed to be fairly weightless, usually about twelve ounces to a maximum of two pounds (per collar). However, there are also weight collars that are, well, weighted. These are most often used by professional bodybuilders who want to add small amounts of weight to their overall bench, without putting too much stress on the barbell itself. This also allows you to add five or ten pounds in total, so you don’t have to jump between twenty-five-pound plates if you’re not comfortable yet. They work as excellent mediums in between other weightlifting exercises and help push limits when you’re plateauing.

Q: Is Lifting Without Barbell Collars Dangerous?

A: Weightlifting collars are actually designed to provide a greater sense of safety. When you attach weight clamps onto your barbell, you’re stabilizing the plates, reducing your chance of fumbling under immense weight and pressure. This is especially helpful when you’re trying to exceed your previous maximum bench weight.

Q: Do Barbell Collars Mitigate My Workout Results?

A: Weightlifting clamps don’t hinder your performance or how much of a workout you get in, but it can actually promote a much more effective workout. The best barbell clamps are designed to maintain stability, which is required to nail that perfect form. If you don’t have your form, then you don’t have anything at all.

This also helps to prevent injuries. If you don’t have a good form, if you don’t have stabilization, then you’re far more likely to put unnecessary pressure on one side of your body. Even if you don’t incur an immediate injury, putting unnecessary levels of stress (the kind that doesn’t benefit your physical form and only damages your muscle fibers) can lead to long-term damage over a short period of time.

best barbell collars

Q: Why Are Nylon Barbell Collars Not a Good Idea?

A: Unless they’re extremely high-end (and usually weighted), nylon barbell collars just don’t grip the way you’d expect for the amount you’re paying. They tend to slide on the barbell unless you find some uncommon ones that come with small interior rubber grips.

Ben Coleman
Ben Coleman
Ben Coleman is our resident sports and fitness product expert who offers a wide range of information in this field. Ben speaks fluently in the language of nutrition, training, and health - with a Fitness and Personal Training B.A (Hon) gained from the prestigious Southampton University in the UK.
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