Colored competition bumpers are designed to meet IWF standards and offer unrivalled weight accuracy with a tolerance of just +/- 10g. Made from high-density virgin rubber, they guarantee minimal rebound for greater safety and stability during your weightlifting training and competitions.
The patented stainless steel center collar ensures better shock absorption and increased durability, preventing premature wear in contact with the rubber. Their textured surface with embossed lettering facilitates handling, while the raised lip around the edge of the disc offers a better grip.
Tested to withstand over 30,000 falls, these discs are the perfect choice for weightlifting, bodybuilding and cross-training facilities, guaranteeing optimum longevity even under intensive use.
Technical specifications
- Diameter: 450 mm (IWF-compliant)
- Collar opening: 50.4 mm
- Insert: stainless steel
- Weight tolerance: +/- 10g
- Hardness: 92 Shore A
- Bounce: Minimal
- Maximum load: Up to 300 kg on a standard Olympic bar
- Factory-tested: Over 30,000 drops to 2.4 m
Available thicknesses
| Weight |
Thickness |
Color (IWF) |
| 10 kg |
33 mm |
Green |
| 15 kg |
42 mm |
Yellow |
| 20 kg |
54 mm |
Blue |
| 25 kg |
62 mm |
Red |
Exercises and muscles worked
| Exercise |
Muscles worked |
Main objective |
| Clean & Jerk |
Shoulders, quadriceps, triceps, abs |
Development of power and explosiveness |
| Snatch |
Hamstrings, glutes, back, shoulders |
Coordination, explosiveness and functional strength |
| Front squat |
Quadriceps, glutes, abdominals |
Lower-body strength and stability |
| Back squat |
Quadriceps, glutes, lumbar region |
Development of maximum strength |
| Deadlift |
Back, hamstrings, trapezius |
Back and leg strengthening |
| Overhead press |
Shoulders, triceps, upper back |
Strengthens shoulders and posture |
| Bent-over Row |
Back, biceps, trapezius |
Improves back strength |
Why choose coloured Competition Bumpers?
- IWF standards and ultra-precise weight tolerance for greater consistency in competition.
- High-density virgin rubber for low rebound and exceptional durability.
- Patented central collar for better shock absorption and optimal bar protection.
- Tested to withstand intensive use, ideal for gyms, weightlifting and powerlifting.
Find the full range of our plates in the weights category.
Frequently asked questions
How precise are the competition bumpers?
The weight tolerance is plus or minus 10 g, compliant with IWF standards, for perfect consistency in competition.
What are the technical specifications of the competition bumpers?
450 mm diameter compliant with IWF, 50.4 mm collar opening, stainless steel insert with a patented central collar, 92 Shore A hardness, minimal bounce, maximum load of 300 kg on a standard Olympic bar.
Which thicknesses and colours are available?
10 kg green (33 mm), 15 kg yellow (42 mm), 20 kg blue (54 mm) and 25 kg red (62 mm), following the IWF colour code. A complete set of competition bumpers is also offered.
Do the competition bumpers withstand repeated drops?
Yes, they are factory tested for more than 30,000 drops from 2.4 m. The high-density virgin rubber and the stainless steel central collar absorb the impact and prevent premature wear.
Which sports are these bumpers designed for?
Weightlifting (snatch, clean and jerk) and competition first of all, as well as strength training and cross-training: front and back squat, deadlift, shoulder press, barbell row.
