CAP OPR6IS-045 Weight Plates
- Plate
- Alloy Steel, Rubber
- Black
- 45 pounds
- More reviewed than 98%
A straightforward 45 pound rubber-coated Olympic plate for filling out a home gym barbell set.
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How it ranks among the 114 plates we track
4.5★ across 3,975 Amazon ratings, Bayesian-smoothed toward the category average.
3,975 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
2,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 114 plates we track - how the scorecard works · full plates data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
This is a single 45 pound CAP Olympic plate built with an alloy steel core wrapped in a rubber coating, finished in black. It is meant to load onto a standard Olympic barbell for strength training.
CAP is a long-running plate maker and this listing shows heavy repeat purchase volume, which fits a plate that gets bought in twos and fours to round out a home barbell set. The rubber coating is the main functional detail in the spec data, beyond that the sheet is thin.
- 45 lb weight
- Alloy steel core, rubber coated
- Black finish
- Olympic barbell plate
Who it's for
Suits someone already running an Olympic barbell who needs to add weight in 45 pound increments. Not the pick if you need plates certified for dropping from overhead lifts, since no drop rating is listed.
Strengths and trade-offs
Drawn from this product's published specifications.
- Rubber coating protects floors and equipment
- Alloy steel core for a standard 45 lb plate
- Fits standard Olympic barbells
- Sold as a single plate, not a pair
- No listed hole diameter or thickness
- No bumper drop rating specified
Performance notes
The rubber coating over an alloy steel core is what keeps a plate like this from chipping floors or clanging as loud as bare iron would. Beyond material and weight, the listing doesn't specify plate thickness or hole diameter, so fit against specific bar collars can't be confirmed from the data here.
Specifications
| Brand | CAP |
|---|---|
| Model | OPR6IS-045 |
| Material | Alloy Steel, Rubber |
| Color | Black |
| Item Weight | 45 pounds |
Other CAP plates
How it compares
This product against the closest alternatives we track in plates.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| CAP OPR6IS-045 Weight PlatesThis product | 4.5 / 5 | 3,975 | 4.4 / 5 |
| RitFit Weight Plates for BarbellRITFIT | 4.8 / 5 | 1,565 | 4.4 / 5 |
| EVERYMATE 1.25LB Change Plates Set Weight PlatesEVERYMATE | 4.8 / 5 | 1,448 | 4.4 / 5 |
| JFIT 20-6650-pr Weight PlatesJFIT | 4.7 / 5 | 777 | 4.3 / 5 |
| Yes4All R61J Weight PlatesYES4ALL | 4.8 / 5 | 605 | 4.3 / 5 |
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Questions about the CAP OPR6IS-045
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is the CAP OPR6IS-045 plate made of?
An alloy steel core with a rubber coating, finished in black.
How much does the CAP OPR6IS-045 weigh?
45 pounds per plate.
Does it come as a pair?
The listed specs point to a single 45 lb plate, so plan on buying multiples to build a full set.