Technical specifications of the 20 kg bumper plate
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Weight: 20 kg (sold in pairs)
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Colour: black
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Diameter: 450 mm (IWF standard)
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Thickness: 71 mm
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Collar opening: 50.5 mm
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Insert: reinforced stainless steel
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Weight tolerance: +/- 1%
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Bounce: minimal
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Material: high-density virgin rubber
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Maximum load on an Olympic bar: up to 220 kg
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Durability: tested over more than 12,000 drops from a height of 2.4 m
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The 5 kg plate is thicker than competition models to limit bending
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Set available: pairs of 5, 10, 15 and 20 kg (100 kg set)
20 kg bumper plate: the reference weight for training
The 20 kg plate is the most widely used plate in weight training and weightlifting. It is the plate you load first on each side of the bar for squats, deadlifts, cleans and snatches. In cross-training and HIIT, this 20 kg weight training plate withstands repeated drops from hip or shoulder height without damaging the floor or the bar.
Each plate has a diameter of 450 mm in line with the IWF standard. The reinforced stainless steel insert ensures strong durability and prevents the insert coming loose from the very first uses. The high-density virgin rubber increases the lifespan of the bumpers and guarantees minimal bounce as well as a neutral smell, unlike recycled rubber plates which bounce very high.
Exercises and muscles worked with bumper plates
| Exercise |
Muscles worked |
| Deadlift |
Glutes, hamstrings, back, abdominals |
| Squat |
Quadriceps, glutes, hamstrings |
| Clean and jerk |
Shoulders, chest, triceps, legs |
| Weightlifting snatch |
Shoulders, legs, core, explosiveness |
| Overhead press |
Shoulders, triceps, upper back |
The other weights in the training bumper range
Why choose 20 kg bumper plates?
These bumper plate weight discs are specially designed to guarantee safe, effective training. Their robust structure ensures increased longevity and their minimal rebound avoids excessive bouncing after dropping the bar. Their dense virgin rubber construction offers acoustic comfort by absorbing impacts effectively.
Whether for deadlifts, snatches, clean and jerks or squats, these bumpers allow progressive loading and intensive work without compromising stability or safety. Thanks to their reinforced stainless steel insert, they guarantee a precise fit on your Olympic bar and prevent any premature wear.
Training bumper vs competition bumper
The black Uni Strength training bumpers are designed to offer the best value for regular use. Their thickness is deliberately greater than that of competition bumpers (71 mm against 54 mm for a 20 kg competition plate): this extra material limits the risk of bending and increases the lifespan of the plate, even with intensive daily use. The weight tolerance is +/- 1%, which remains precise for training while allowing a more accessible price.
Compliant with the IWF standard, these 450 mm diameter plates are ideal for anyone looking for reliable, high-performance equipment. Their contained thickness lets you load up to 220 kg on a standard bar, offering optimal progress in strength and explosiveness.
Browse our full range of bumper plates and weight training plates to complete your equipment.
Frequently asked questions
What are the specifications of the 20 kg bumper plate?
A pair of black 20 kg plates in high density virgin rubber, 450 mm diameter to IWF standard, 71 mm thick, 50.5 mm collar opening, reinforced stainless steel insert, weight tolerance of plus or minus 1 percent, minimal bounce and neutral odour.
How much can you load on a bar with these bumpers?
Up to 220 kg on a standard Olympic bar.
What is the difference with a competition bumper?
The thickness is deliberately greater (71 mm against 54 mm for a competition 20 kg) to limit the risk of bending and increase longevity, with a 1 percent tolerance that allows a more accessible price.
Do these bumpers withstand drops?
Yes, they are tested over more than 12,000 drops from a height of 2.4 m, and the reinforced insert does not come loose.
Which exercises are they for?
Deadlift, squat, clean and jerk, snatch and overhead press: it is the first plate loaded on each side of the bar in strength training and weightlifting, and it withstands repeated drops in cross training and HIIT. A 100 kg set with pairs of 5, 10, 15 and 20 kg is available.
