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Talk to a weight plates specialist| Warranty | 12 months parts replacement |
If you train Olympic lifts at home and need plates you can drop from overhead, these 15 kg bumpers take the hit on a high density rubber body wrapped around a smooth steel ring core. Each plate measures 450 mm across with a 50 mm hole, so it sits true on any standard Olympic barbell.
They suit a lifter building out a dedicated strength space, whether at home or in a commercial gym, with grooved edges that make loading and unloading the bar easier mid-session. Built to IWF standards and backed by a 12 month parts replacement warranty.
The 450 mm diameter is the detail I'd flag: it matches the bar height of competition plates, so your pulls start from the same floor position whether you load 15 kg or a full set.
The steel core suits dropping, but fifteens are a jump from tens, so beginners may want smaller increments between. The grooved edges are the standout, making loaded plates far easier to grip.
Adela Ledvinkova · Bachelor of Exercise & Sport Science · Our In-House Fitness Coach
Each plate is cast from high-density rubber around a steel core, so you can drop loaded lifts from overhead without worrying about the plate shattering.
The scratch-resistant rubber surface takes repeated contact with the floor and holds its finish over time.
What this means for you: If you train Olympic lifts or CrossFit-style sessions, these handle being dropped as part of the workout.
The 50 mm hole diameter fits standard Olympic barbells, and the smooth steel ring core lets plates slide on and off without catching or scraping the sleeve.
Grooved edges give you a better grip when you are carrying plates to and from the rack.
What this means for you: Changing weights between sets stays quick, which matters when you are supersetting or working against the clock.
These plates are built to IWF standards with a 450 mm diameter, the regulation size used in weightlifting, so every plate sits the bar at a consistent height off the floor.
That consistent diameter means your pull position stays the same whether you load 15 kg or stack several plates per side.
What this means for you: If you are training technique or mimicking competition setup, the bar starts at the right height every time.
The all-black finish keeps a matched look as you add pairs to your set, and the heavy-duty rubber resists scratches from daily handling.
Cortex backs these plates with a 12-month parts replacement warranty, and if this page shows the 100 Day Money Back Guarantee badge you can return them within 100 days if they don't suit your setup.
What this means for you: Buy a pair now and match more later without the colours or sizing drifting across your set.
| Product Type | Olympic Bumper Plates |
| Material | High density rubber with steel core |
| Core | Smooth steel ring core |
| Surface | Scratch-resistant heavy-duty rubber |
| Handling | Grooved edges |
| Standards Compliance | IWF Standards |
| Colour | Black |
| Plate Diameter | 450 mm |
| Hole Diameter | 50 mm |
| Weight | 15 kg per plate |
| Suitable For | Gym, commercial, or home use |
| Warranty | 12 months parts replacement |
These ship as a 2-pack, 15 kg per plate, so 30 kg total. Freight carries them to your door Australia-wide. Plates travel well, but check the packaging on arrival and keep it until you've inspected both plates. No assembly, just unbox and load them onto your bar.
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, organise a replacement plate, and stay across it until it's sorted. You don't deal with the courier directly, that's our job to handle for you.
Yes. The hole diameter is 50 mm, which is the standard Olympic size, so they slide onto any Olympic bar or standard loading pin. The plate diameter is 450 mm, matching IWF standards, so they sit level with the floor at the same height as competition plates. No adapters or bushings needed.
That's exactly what bumper plates are built for. The high density rubber and smooth steel ring core let you drop loaded lifts, deadlifts, cleans, snatches, without damaging the plate or your bar. I'd still run a 15 mm rubber gym mat or platform underneath for repeated drops. It protects your floor and keeps the noise down.
The grooved edges make a real difference here. Loading a bar or carrying a 15 kg plate across the gym floor is easier when you've got something to grab, especially with chalky or sweaty hands. The scratch-resistant rubber surface also shrugs off the knocks that come with regular handling.
They come with a 12 month parts replacement warranty, handled by our Australian team. If something isn't right within that window, contact us and we'll organise the replacement. For a rubber bumper plate with a steel core, that covers the parts that matter most.
Both. They're rated for gym, commercial, or home use, so the same plate works in a garage setup or a busy training floor. At 15 kg each, they're a solid mid-weight for building out a set, strong enough for serious lifting but not so heavy they're awkward to handle for most sessions.
If the plates carry the 100 Day Money-Back Guarantee badge on this page, you've got 100 days to return them in as-new condition with the original packaging, no restocking fee. We organise the return freight (you pay for it) and refund the product price and your original delivery fee. Just contact us first so we can approve the return and organise the booking.
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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