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  • OSO Barbell Collars Red OSO Barbell Collars Red
  • OSO Barbell Collars Black OSO Barbell Collars Black
  • OSO Barbell Collars Silver OSO Barbell Collars Silver
  • OSO Barbell Collars OSO Barbell Collars
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OSO Barbell Collars

Quick Overview

This revolutionary design is the gold standard for Olympic Barbell Collars. Sold in pairs

Availability: Out of stock

Product Name Price
OSO Barbell Collars (Black)
OSO Barbell Collars (Silver)
OSO Barbell Collars (Red)


Whether you run a CrossFit facility, a weightlifting outfit or an all-round training venue, these OSO Olympic Barbell Collars are the gold-standard. With a revolutionary design, the collars, which are made from 6061 billet aircraft-grade aluminium, are incredibly lightweight, without every sacrificing that essential durability.

Designed for use on 50mm Olympic bar sleeves, these OSO collars prevent your plates from sliding off the barbell effortlessly, with a rubberized lining to protect the bar and a locking clamp mechanism for the most secure hold possible. 

We cannot recommend these collars enough, The will keep bumper plates on a bar 10X longer than any other collars 


  • Sold in Pairs
  • Made in the USA
  • Designed to be used on 50mm Olympic Bar Sleeves
  • 6061 Billet Aircraft Grade Aluminium
  • Rubberized interior lining to protect bar
  • Locking clamp mechanism for secure hold

The OSO collars are connected to the closing lever with an Alan key bolt fixing, from time to time they will need tightening as vibrations and heavy use can loosen them (just like competition plates steel inserts) lost bolts due to lack of equipment care voids warranty.

We stand by every one of our products so much so that we back it up by a 100% Peace Of Mind guarantee. Our products meet professional specifications and undergo specific in house testing. We only provide high quality equipment.

30 Day 100% Peace Of Mind Guarantee

We trust in everyone of our products to fulfil and meet your expectations. If you are not 100% happy with your products due to a fault or poor workmanship, you can return your NEW and UN-USED Strength Alliance products for a full refund with in 30 days of the delivery date. All items returned must be in a new and unused state and must include all of the original packaging. If packaging is not available then you will be charged. Strength Alliance will not be responsible for return charges unless the item has a manufacturing defect.

Find out more about our warranties.

We offer a range of delivery options, depending on the product you’re buying and where you would like your order delivered. Find out more about our delivery options and returns policy below.

Standard Delivery: Although we aim to get every order to you within 48hrs please allow 2-3 business days for delivery. Standard delivery from £7.50 inc-VAT.

Saturday Delivery: If Saturday Delivery is available for the products in your basket we’ll offer you this option at checkout. 

For large or heavy items we currently offer a kerbside pallet drop only. Prices start from £50.00 inc-VAT. recipients must be available to ccept the delivery between the hour of 9am-4pm unless other arrangements have been confirmed.

UK postcode exceptions: Free and Saturday delivery options are currently not available to the following postcodes beginning with: BT, KA27, KA28, FK18-FK21, HS1-HS9, IV1-IV63, PA20-PA88, PH17-PH50, KW1-KW17, PO30-PO41, ZE1, ZE2, ZE3, IM, IOM, JE and GY. Postcode exception areas include Scottish Highlands & Islands, Isle of Man, Channel Islands and Northern Ireland.

Returns Policy: You have 7 working days, from receipt of cancellable goods, to notify us if you wish to cancel your order or exchange an item. For more information on our returns policy please click here.