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Talk to a weight plates specialist| Warranty | 12 months parts replacement |
Lifters building an Olympic setup at home get a dense, thinner profile on these 20 kg plates, so more weight fits per sleeve on a standard 50 mm bar. The high density rubber and steel core are built to IWF standards, with grooved edges that make loading and carrying a two-pack easier.
They suit anyone running deadlifts, cleans and squats who wants a consistent 450 mm diameter across the set. The scratch-resistant black surface holds up to repeated drops in a home, gym or commercial space, backed by a 12 month parts replacement warranty.
The dense, thinner profile is what I'd flag first: at 450 mm with a slim build, you can stack more weight on the sleeve before the bar runs out of room.
Bumpers bounce a little on a drop, so collar the bar every set. I'd pair them with a quality Olympic bar, since the 50 mm hole fits standard sleeves cleanly.
Adela Ledvinkova · Bachelor of Exercise & Sport Science · Our In-House Fitness Coach
Each plate weighs 20 kg and uses a high density rubber body around a steel core, so the rubber holds its shape through repeated drops from overhead.
The dense, thinner build means you fit more weight on the bar sleeve before you run out of room, which matters once you load four or more plates per side.
What this means for you: For heavier lifters and Olympic lifting, the thinner profile keeps the bar balanced and leaves room to load the weight you actually train with.
The 50 mm hole fits a standard Olympic barbell sleeve, and the steel core keeps that fit tight so the plate slides on and off cleanly without wobbling.
Grooved edges give you a positive grip when you are loading, unloading or carrying plates between stations.
What this means for you: Fast plate changes between sets, and no fighting a loose or stuck plate on the bar.
The 450 mm diameter matches the IWF standard, so the bar sits at the correct lifting height off the floor for Olympic lifts like the clean and snatch.
That consistent height means your pulling position stays the same whether you load one plate or several per side.
What this means for you: If you train the Olympic lifts, the standard diameter sets the bar at the height your technique is built around.
The high density rubber surface resists scratches and scuffs from daily loading, dropping and stacking.
A single black colour keeps a clean, consistent look across the whole set as you add more pairs.
What this means for you: A plate that keeps looking tidy and performing the same after months of hard use.
This set is backed by a 12-month parts replacement warranty, handled by us here in Australia.
If something is not right on arrival, request a return within 100 days and send it back in as-new, repackaged condition with no restocking fee.
What this means for you: You can commit to building out your plate collection knowing the backing is sorted locally.
| Product Type | Olympic Bumper Plates |
| Material | High density rubber with steel core |
| Design Standard | IWF standards |
| Features | Scratch-resistant surface, grooved edges for handling, dense and thinner design |
| Colour | Black |
| Intended Use | Gym, commercial, or home use |
| Plate Diameter | 450 mm |
| Hole Diameter | 50 mm |
| Weight | 20 kg per plate |
| Warranty | 12 months parts replacement |
Each 20 kg plate ships in its own carton, so each box is heavy. On the day, have a clear spot ready at ground level. Lift from the knees, not the back, and check the box over before you sign for it.
Take photos before you unpack fully and send them to support@cardioonline.com.au within 48 hours of delivery. We'll lodge the freight claim and organise a replacement. You won't deal with the courier yourself, that's our job. Rubber bumpers travel well, so damage is rare, but we'll sort it fast if it happens.
Yes. The hole diameter is 50 mm, which matches a standard Olympic bar sleeve, so they slide straight on with no play or rattle. Nothing to assemble, nothing to adjust. Load them, collar them, lift. If you're running an Olympic bar and collars, these are ready to go out of the box.
A thinner profile means you fit more weight on the bar before you run out of sleeve. For heavier lifters stacking 100 kg plus, that extra sleeve room matters. The high density rubber over a steel core is what lets them stay slim without feeling flimsy. For serious loading, that's where these earn their keep.
Yes, these are bumper plates, so they're built to be dropped from a deadlift or overhead on a lifting platform. The high density rubber and steel core handle repeated drops. I'd still put a dedicated rubber mat or platform underneath, both for the floor and to keep the bounce consistent. That protects your setup over the long run.
Each plate is 450 mm (45 cm) across, the standard Olympic diameter, so they sit flush on the bar and store neatly on a vertical or horizontal plate rack. The pair weighs 40 kg total, so a sturdy rack rated for the load is worth having. They store flat against a wall just as easily if you're tight on room.
Twenty kilo plates are the standard pair for intermediate and stronger lifters loading squats, deadlifts and presses. If you're newer to barbell work, you'll likely want a lighter pair alongside these to warm up and progress in smaller jumps. Built for gym, commercial or home use, they hold up whether you train daily or a few times a week.
They come with a 12 month parts replacement warranty, handled by us here in Australia. If you buy a plate pair that carries the 100 Day Money-Back Guarantee badge, you've got 100 days to return it in as-new, repackaged condition with no restocking fee. Return shipping is yours to cover. Just reach out before sending anything back.
This product ships in 2-3 business days after you place your order.
Use the shipping calculator beside the Add to Cart button for an exact quote to your postcode. Approximate delivery times across Australia:
Try it for 100 days. Return it if it is not right.
If your equipment is not right for your space or your training once you have lived with it, you can request a return within 100 days of purchase for a refund of the product price.
Available on products showing the 100 Day Money Back Guarantee badge. Return shipping is paid by the customer unless otherwise agreed. Original delivery, installation and service fees are non-refundable. See the full policy: /pages/risk-free-returns
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