IPF-Approved Competition Powerlifting Discs
Officially approved by the International Powerlifting Federation (IPF) since January 2023, ONI Calibrated Steel Powerlifting Discs are designed for competitive powerlifting and heavy strength training.
With a weight tolerance of just ±10 g, these precision-calibrated discs are suitable for official competitions and serious training.
Their slim steel construction allows more weight to be loaded onto the barbell compared with thicker disc designs.
Not designed for overhead drops. Use for powerlifting and conventional strength training.
Exceptionally Easy to Handle
Optimized Thickness for Better Grip
While calibrated steel discs are known for their slim profile, ONI discs are intentionally designed approximately 1–2 mm thicker than comparable products to improve handling.
Unique X-Shaped Grip Design
All discs except the 0.5 kg and 0.25 kg models feature an X-shaped center design, making them easier to grip.
Rear Grip Grooves
The 25 kg and 20 kg discs feature rear grooves that allow fingers to grip the discs securely, making them easier to lift, carry, and change during competitions.
Designed for faster, easier disc changes by competition loaders.
Product Specifications
| Weight |
Color |
Thickness |
Outer Diameter |
| 25 kg |
Red |
27 mm |
450 mm |
| 20 kg |
Blue |
22.5 mm |
450 mm |
| 15 kg |
Yellow |
22 mm |
400 mm |
| 10 kg |
Green |
21 mm |
325 mm |
| 5 kg |
White |
22 mm |
225 mm |
| 2.5 kg |
Black |
17 mm |
190 mm |
| 1.25 kg |
Orange |
10 mm |
160 mm |
| 0.5 kg |
Silver |
9 mm |
134 mm |
| 0.25 kg |
Gold |
8 mm |
112 mm |
Additional Specifications
| Specification |
Details |
| Weight Tolerance |
Within ±10 g |
| Center Hole Diameter |
50 mm |
| Certification |
IPF Approved Since January 2023 |
| Country of Manufacture |
China |
| Sales Unit |
1 Pair (2 discs) |
| Product Warranty |
2 Years from Delivery |
Important Notices
Prices vary by weight. Individual weight options are sold in pairs.
Some outer packaging may be damaged during palletized transportation without affecting the contents.
Minor cosmetic imperfections, including scratches, dirt, paint variations, and differences in perceived color, may occur during storage and transportation.
