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5kg bumper plates, bumper plates, bumper plates, olympic bumper, olympic bumper plates, olympic bumpers, olympic bumper set, olympic weight bumper

Bumper Plate - 5kg (Pair)

Rated 5.0 out of 5
2 Reviews
$119.00 AUD

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SMAI Bumper Plates are manufactured from high quality rubber that is odour free, without recycled components. Made to a density of Shore A Durometer of 88, these rubber bumper plates have been designed to offer minimal bounce. This ensures their suitability for commercial use and overhead dropping, particularly in a CrossFit® Box. The SMAI Bumper Plates have been specifically engineered for Olympic lifting and CrossFit® spaces due to the materials used. With the 5kg option being a full bumper sized plate in diameter, it can be used on a bar to train correct technique. The ideal weight set addition to any space.


  • Insert: manufactured steel
  • Material: high quality rubber
  • Tolerence within 1% of claimed weight
  • Collar opening: 50.5mm +/- 0.2mm
  • Diameter: 45cm
  • Sold as pair

To ensure bumper plates adhere to warranty, they must be used on a rubber or plywood lifting platform.














Michael Pang (Owner of Crossfit Aphesis) Box owner, Head coach, Certified Olympic lifting Instructor

With over a decade’s worth of experience in Weightlifting, we have tried and tested many bumper plates, from IWF Olympic Games Quality to generic bumpers found most often at your local CrossFit Box. We’ve hammered the SMAI Bumper plate range for the past 4 years with zero failures and have found that they are quite simply by far the best value for money plates on the market when it comes to durability, surface finish, tolerance (weight and fit), design and warranty. With a low to medium bounce, no sticky oily residue out of the box, extremely tight weight and design tolerances and a flawless surface finish. In a nutshell the SMAI Bumper plate range is humble, efficient and reliable.

Pickup: Available from our Head Office, 93 Jardine St, Fairy Meadow NSW 2519 Australia. Orders will be available for pick up within 1-2 business days. We will call you to arrange a suitable time.

Shipping Costs: Calculated during checkout, taking into calculation the quantity of items ordered, the weight, and the dimensions.

Dispatch: Within 1-3 business days from our warehouse. Tracking confirmation will be provided by email.

Delivery: 1-6 business days to major cities in Australia via Star Track Express (for satchels, loose cartons and pallets). For larger items or multiple pallets, we use Toll’s general service, which may take longer than our express service.

When you receive your items: Delivery times will be between 9am to 5pm (weekdays only). A signature is required. Please note, if there is no one available to sign for your order, 2nd delivery charges may apply.

Transit Insurance: You need to sign for your goods on delivery in order to be covered by insurance for any theft, damage or loss to your goods during transit. Where written authority has been provided to deliver without signature, any insurance cover will be voided.

Delays: We always try to ensure that your order is delivered in a prompt and timely manner, however, factors outside our control may cause delays. SMAI is not liable for any loss that may occur as a result of such delays.


View full shipping & delivery information here.

We offer 14 days returns for change of mind. 

To be eligible for a return, your item:

- Must be unused and in the same condition that you received it
- Must be returned within 14 calendar days of receiving the order
- Must be in its original packaging
- Must have the receipt or proof of purchase (please enclose in return)

 Items not eligible for return:

- Items on sale / clearance / end of the line
- Requests received after 14 days of receiving your order
- Items used or not in original condition and packaging
- Items with no receipt of purchase


Please see our Returns Policy for more info.




All products sold by SMAI have a manufacturing warranty that covers the structural integrity of the product, and so long as the equipment is fit for its intended purpose (this excludes clearance items). If your product turns out to be faulty or damaged, SMAI will repair, replace or refund the item; unless (but not limited to):

  • The product has not been used for its original intended purpose
  • Normal wear and tear
  • Cosmetic damages
  • Misuse
  • Incorrect installation/assembly
  • Improper storage
  • Poor maintenance
  • Outside the warranty period
  • Lack of proof of purchase

Unless otherwise specified in our Warranty Policy, all products have a 3 month manufacturing warranty, starting from date of invoice.

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Please be advised that it is the responsibility of the purchaser to ensure correct installation and maintenance of the products, and inform further users or clients of proper equipment usage and handling. We recommend that you conduct regular equipment audits to ensure that all your products are correctly maintained and replaced as required.


Item Name



Aphesis Competition Bumper Plate, Bumper Plates, Competition Bumper Plates, HD Bumper Plates

Type of Warranty

Manufacturing Fault

Warranty Period

12 months

Max. Weight Variance

+/- 10 grams

Do Not

  • Use outdoors
  • Use without protective impact absorbing surface (such as an Olympic lifting platform or rubber gym tiles with min. thickness of 8mm)
  • Use on a rigid, uneven surface such as concrete, gravel etc.
  • Use with barbells that are over 50mm collar diameter


  • Normal wear and tear, cosmetic damages, surface scratches, chipping
  • Drying out or cracking from overexposure to UV rays


  • Use a PH neutral detergent to wipe over the plates. Wipe dry with a lint free cloth.
  • Avoid storing in direct sunlight, however, if this is unavoidable, apply a rubber cleaner/protectant
  • If the rubber surface appears to be dry, apply a rubber rejuvenator such as Armorall or WD-40 and wipe dry
average rating 5.0 out of 5
Based on 2 reviews
  • 5 Stars
    2 Reviews
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100% of reviewers would recommend this product to a friend
Rated 5 out of 5
Rated 5 out of 5
2 Reviews
Rated 5 out of 5
Review posted

Great Product

These plates are used pretty much each and every training day, the quality is second to none.

Rated 5 out of 5
Rated 5 out of 5
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Rated 5 out of 5
Review posted

5 kg bumpers plates

solid and reliable they have last over 6 years

Rated 5 out of 5
Rated 5 out of 5
Was this helpful?


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How does Afterpay work?

  1. Place an online order
  2. Choose Afterpay as the payment option
  3. Signup or use your existing Afterpay account
  4. Once approved, SMAI will dispatch your order


  • Orders must be between $55 - $1,000, including shipping and GST
  • If this is your first order with Afterpay, your limit will be around $500
  • Afterpay cannot be used as a payment method over the phone or in-store

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