US
CAP

CAP SDRSIS-150R-12BRD Dumbbells

  • Dumbbell
  • Aluminum
  • 40.5 pounds
4.5/ 5 on Amazon1,430Amazon ratings100+bought last month4.0ProductDome score
  • More reviewed than 68%
Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou trust CAP's dumbbell line and are ready to confirm exact weight specifics on the product page

A reasonably well-reviewed CAP dumbbell at 4.5 stars, though the incomplete spec listing makes confirming exact weight and count worthwhile before buying.

View current price on Amazon →

As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.

ProductDome scorecard

How it ranks among the 88 dumbbells we track

4.0/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.5

4.5★ across 1,430 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 564 ratings3.9

1,430 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score2.7

100+ bought on Amazon last month.

Data quality · 11% of score2.5

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 88 dumbbells we track - how the scorecard works · full dumbbells data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The CAP SDRSIS-150R-12BRD is a dumbbell from CAP's fitness line, made from aluminum with a combined item weight of 40.5 pounds. The listing does not break down individual weights or how many pieces are included.

CAP is a familiar name in home gym equipment, and this model carries a 4.5 rating from 1,430 reviewers, suggesting steady satisfaction at whatever weight range it covers. Aluminum construction is less common than cast iron or coated dumbbells, which may affect grip feel and durability differently than a standard cast dumbbell. Buyers should confirm exact individual weights before ordering since the spec data here only gives a combined figure.

  • CAP brand dumbbell
  • Aluminum construction
  • 40.5 pounds combined item weight
  • 4.5 rating from 1,430 reviews

Who it's for

Suited to home gym users building out a dumbbell collection who are comfortable confirming exact weight specifics before purchase. Less suited to anyone needing a precise, single documented weight without further research.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Solid 4.5 rating from 1,430 reviewers
  • From CAP, an established fitness brand
  • Aluminum construction resists corrosion
What to check first
  • Listing does not specify individual weight or piece count
  • Aluminum feel differs from standard cast iron dumbbells
  • No dimensions provided

Performance notes

Aluminum dumbbells generally trade some of the density of cast iron for a lighter, more corrosion-resistant build, which can change grip feel and durability compared to standard coated dumbbells. With individual weight and piece count not listed here, how this specific model performs in a rack or during use depends on details worth checking on the product page.

Specifications

BrandCAP
ModelSDRSIS-150R-12BRD
MaterialAluminum
Item Weight40.5 pounds

How it compares

This product against the closest alternatives we track in dumbbells.

ProductAmazon ratingRatingsProductDome score
CAP SDRSIS-150R-12BRD DumbbellsThis product4.5 / 51,4304.0 / 5
Amazon DB1001 DumbbellsAmazon4.8 / 5127,7424.7 / 5
Yes4All DSAX DumbbellsYES4ALL4.7 / 518,5684.6 / 5
Portzon Neoprene dumbbellsPortzon4.8 / 527,6004.6 / 5
JFIT J-DBN2SET DumbbellsJFIT4.8 / 57,6004.6 / 5
Frequently asked

Questions about the CAP SDRSIS-150R-12BRD

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What is the CAP SDRSIS-150R-12BRD made from?

Aluminum, according to the listed material specification.

Is CAP a reliable dumbbell brand?

CAP is a well established name in home gym equipment, and this model holds a 4.5 rating from 1,430 reviewers.