CAP Olympic Bumper Plate Weight Set
- Item Weight: 52.5 pounds
- Material: Cast Iron, Rubber
- Color: Black
- Number Of Items: 100
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Rubber-coated cast iron plates weighing in at 52.5 pounds per the listed spec, quieter on the drop than bare iron equivalents.
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ASIN: B0DHYN3X3ZModel: OSR6ISCategory: Weight Plates
Overview
Rubber-coated cast iron gives these CAP weight plates a quieter drop than bare iron, with a listed item weight of 52.5 pounds in black, suited to barbell or plate-loaded machine use.
The rubber coating over a cast iron core is the usual approach for reducing noise and floor damage compared with bare iron plates, and it typically also cuts down on chipping if plates are dropped.
- 52.5 pounds item weight
- Cast iron core with rubber coating
- Black finish
Who it's for
Suits lifters adding plate weight to a barbell or plate-loaded machine who want a quieter, floor-friendly option over bare cast iron. Not the choice for anyone needing an exact plate-by-plate breakdown confirmed up front.
Pros and cons
- Rubber coating reduces noise and floor damage
- Cast iron core keeps a dense, compact plate
- Exact plate breakdown is not specified in the data available here
- Rubber coating may wear at the edges over time
Performance notes
Rubber coating over cast iron cuts impact noise and floor marking versus bare iron, while the cast core keeps the plates compact for their weight.
Specifications
| Brand | CAP Barbell |
|---|---|
| Model | OSR6IS |
| Dimensions & fit | |
| Item Weight | 52.5 poundshigher than 79% of 100 weight plates |
| Construction & materials | |
| Material | Cast Iron, Rubber |
| Color | Black |
| Included components | |
| Unit Count | 6 |
| Other details | |
| Number Of Items | 100 |
| Part Number | OSR6IS-100 |
Closest rivals on specs
Frequently asked questions
What are CAP OSR6IS-100 plates made of?
Cast iron with a rubber coating.
What color are they?
Black.
How much do they weigh?
The listed item weight is 52.5 pounds.