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OSO Barbell Collars

Sold in Pairs
€49.95 €60.44 Incl. Tax
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OSO Barbell Collars

OSO Barbell Collars are made in the USA from the same type of 6061 aluminum alloy used in aircraft construction. The OSO Barbell Collars deliver on functionality, too--creating a secure hold on the bar through repeated, high-impact drops, and allowing easy adjustments or removal with a simple lever and lock/unlock mechanism.

All that being said, the first thing a lot of lifters talk about with the OSO Barbell Collars is how they look. Shaped like an industrial gear, the collars’ old school design is paired with some great color options.

For Oly lifters, CrossFitters, or any athlete looking for an upgrade from basic spring collars, OSO Barbell Collars are a nice option.


  • Sold in Pairs
  • Made in the USA
  • Designed to be used on 50mm Olympic Bar Sleeves
  • 6061 Billet Aircraft Grade Aluminum
  • Orange Rubberized interior lining to protect bar
  • Locking clamp mechanism for secure hold
  • Color Options: Blue or Gun Metal

Rogue fitness will warranty this product from defects in material, functionality and workmanship for a period of 2 years from the date of purchase of the product. The warranty applies only to the original purchaser of the product for so long as the original purchaser owns the product, and is non-transferable. Warranty may be voided for any product which has been damaged due to negligent or faulty use, alteration, maintenance, storage or handling by the user. Any specific issues regarding a Rogue product with which a customer is not satisfied will be reviewed on a case-by-case basis.Note: Rogue will continue to honor warranties on products purchased directly from OSO prior to Rogue's acquisition of OSO Barbell Collars on these same terms and conditions.

Gear Specs

Brand OSO
Made In USA Yes
Product Weight 0.8 lbs (Per Pair)
Width 1.5"
OSO Barbell Collars is rated 4.8 out of 5 by 65.
Rated 5 out of 5 by from I don't know how to workout now I feel like I'm a great person to review these collars as I'm not very fit and have to drop the barbell 3 times as much as any other athlete during a workout. If anyone knows about dropping weights, I'm the guy. Rich Froning's review? Although highly respected, worthless. What does he know? He only drops a barbell once in a workout. Anyway, these collars keep my plates secured tightly to the barbell even in the most dynamic situations, like bouncing across the gym floor causing everyone within a 10 foot radius to dodge it between their reps. The only problem is now I'm not able to catch my breath while re-securing my weights and adjusting my collars. That was my "go-to". Now I'll have to do something else to buy me time, like fake tie my shoe or walk outside to make sure I didn't lock my keys in my car. I love these collars but they have totally messed up my approach to workouts.
Date published: 2018-11-24
Rated 5 out of 5 by from Fantastic I bought these clips for Christmas gifts last year. They are absolutely worth the money. Highly recommend the case to keep them in. Buying more this year for gifts. Sadly to find out that you can’t buy the cases to keep them in any more
Date published: 2018-11-15
Rated 5 out of 5 by from Solid performer! Tight fit on bar! I have used these collars at the gym and decided to get some for myself to use when the others were being used. Excellent light weight collar and good tight fit on the bar.
Date published: 2018-11-13
Rated 4 out of 5 by from Works well but... Works very well, however, I ordered the blue and it’s not even close to the color shown which is disappointing. Also would be nice if the handle was aluminum instead of plastic.
Date published: 2018-11-13
Rated 4 out of 5 by from Worth the investment I bought these because my new box has Spring Collars, which I find nearly impossible to quickly change plates mid-workout. Or remove plates after a grippy metcon. The lock/unlock mechanism is a bit stiff in the beginning, but after a few weeks of use it's settled well. When locked, the grip is VERY tight. If the sleeve of your barbell has any imperfections you can catch tough friction when adding/removing the collar. That can slow you down. Super happy with these. I bought the pair in red and the color is bold- it's easy to spot from across the room and it prevents the collars from ending up with the rest of the community gear. Solid, high quality.
Date published: 2018-11-02
Rated 5 out of 5 by from Great collars Bought these a few weeks ago, they do exactly what they’re supposed to. The complaints about the collars being difficult to fit might be due to not opening the collars all the way, they lock in both directions. They fit similarly to regular plates when open, so if you grab it at an angle it won’t be easy to pull off. As far as catching your fingers goes, sure, you could, anything is possible, but you could also hold the lever as you operate it and don’t put your fingers on the other side. Very well made collars, make the gym’s acrylic collars look and feel like toys.
Date published: 2018-10-24
Rated 5 out of 5 by from My daughter loves them! Had to give them 5 stars because my daughter loves them....I wish the blue was the same navy blue as the bar I just bought her ☹️ Even though she doesn’t seem to mind
Date published: 2018-10-12
Rated 5 out of 5 by from Some of the best collars you can get I have had these for 3 months now and love them. There is a little learning curve so you don't smack yourself with the handle when it springs open and make sure to open them all the way when attaching or removing them. I have not had one slip yet. The annodizing is holding up well after being tossed into my gym bag at the end of the day.
Date published: 2018-10-11
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