CAP Barbell Cast Iron Hex Dumbbell Review

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CAP Barbell Cast Iron Hex Dumbbell Review

The CAP Barbell Solid Hex Dumbbell 2021 is one of the best dumbbell set for home use or even for commercial use. Adjustable weights are available and they are good for those who have a budget and have less space for fitness equipment or those who like things to be tidy.

If you are on a budget, you can get the CAP’s Adjustable Dumbbell Set at a good price; it comes with four plates of 2.5 pound each, four plates of 5 pound each, bringing the total weight to 40 pounds.

The Cap Barbell Solid Hex Single Dumbbell is available in different weights ranging from 5 lbs to 120 lbs, and the prices vary from around $9.48 to $253.47.

The prices of these cap hex dumbbell set depend on the weight of the dumbbells. You can slowly build up your collection of Cap Barbell Solid Hex Single Dumbbell and have a total of 24 dumbbells in your fitness equipment collection.

The dumbbells have an ergonomic design and have a great impact on your fitness training. These dumbbells give you a challenging workout and give its users a total body workout.

Best Suited to Whom?

The CAP Barbell Solid Hex Dumbbell 2021 is best suited for HIIT workouts as well as functional workouts. It is one of the best dumbbells for beginners. When it comes to adjustable dumbbells, the matter of concern is the safety of the users.

However, the bars of CAP dumbbells are machines properly and are they consist of rubber trimmed collars for safety. The dumbbells help in defining the arms, chest, shoulders and back.

CAP Barbell Cast Iron Hex Dumbbell Assembly, Design & Build Quality


Users need to be very careful when they handle the CAP Barbell Solid Hex Dumbbell 2021 as they are heavy equipment. At times the ends can be loose and might require a bit of tightening up.

Design and Build Quality

The CAP Barbell Solid Hex Dumbbells are hexagonal in shape, hence the word “hex”. This particular shape prevents the equipment from rolling over and sliding off. It also helps the user to store the dumbbells easily.

Each of the dumbbells is made up of black cast iron. They are then attached together by way of a cold-rolled steel handle. The dumbbell is then given an industrial enamel coating which is durable and has weight markers on grey silver.

ASTM A48 Class 20 grey iron is used for the head of the dumbbells and the 1018 cold rolled steel handle is used to join it. A semi-gloss finish is used to prevent the dumbbell from rusting and it also complements the gym décor.

Rubber collars are used to prevent the movement of the plates and give the plates a good fit. CAP ships its dumbbells with plastic cases. These cases prove useful to store the dumbbells when you don’t use them or in case of transporting the equipment.

If you have plans to buy more sets of dumbbells in the coming months, you can invest in the A-Frame dumbbell racks of CAP in order to store the dumbbells.

CAP Barbell Cast Iron Hex Dumbbell Features


The CAP Barbell Dumbbells 2021 is made up of cast iron and steel handles that are quite sturdy, for 15 pounds and above. The CAP Barbell Cast Iron Hex Dumbbells comes with solid steel ends and is quite durable and will last you for years.


The finish is quite durable and effective due to the use of a baked enamel coating. It prevents the dumbbells from getting rusted and the equipment can handle wear and tear due to regular use of the dumbbells.

Rack Storage System

 The weight of every single cast iron dumbbell is moulded into the main ends, thereby making it quite easy and fast to identify a specific pair of weights, even if a storage rack isn’t available.

In case you intend to purchase a few more sets of dumbbells in the near future, you might consider investing in a storage rack by CAP Barbell – the A-Frame Dumbbell Rack.

Threaded Collars

 The handle has a medium depth knurling which offers the required grip and security while using the dumbbells, so the user’s hands will not slip while they work out. The hexagon shape prevents the weights from rolling around, which could lead to injuries and the floor of the house getting ruined.

Weight Range

 The CAP Barbell Cast Iron Hex Dumbbells are available in weight range starting from 5 pounds to more than 100 pounds. This makes your workouts challenging.

Weight Settings

The CAP Black Cast Iron Dumbbell Weights are available in a range of sizes starting from 3, 5, 8, 10, 12, and 15  going up to 120 pounds and in increments of  5 lbs. These dumbbells can be obtained in pairs in the weight ranges 5, 10, 15, 20 and 25 pound.


The CAP Barbell Cast Iron Hex Dumbbells 2021 is good for an upper body workout. If you want to buy many dumbbells in different weight ranges, you might want to get yourself a dumbbell rack to store them.

CAP Barbell Cast Iron Hex Dumbbell Workout Programs

The CAP Barbell Cast Iron Hex Dumbbells 2021 offers a variety of weights in their solid hex range of dumbbells. This gives you a variety of exercise options as well.

You can also combine the CAP Barbell Cast Iron Hex Dumbbells with a weights bench and you could more challenging exercises out of the combination. However, with the dumbbells, there are some of the best dumbbell exercises that have been listed below:

  • Hammer curls
  • lunges
  • Concentration curls
  • Tricep kickbacks
  • Bicep curls
  • Lateral raises
  • Overhead dumbbell extensions
  • Deadlifts
  • Arnold Presses
  • Dumbbell Rows
  • Shrugs
  • Upright rows

CAP Barbell Cast Iron Hex Dumbbells vs Adjustable Dumbbells

If you are unable to decide as to whether to buy the Hex Dumbbells or the adjustable dumbbells, you must look into three main points before you make your purchase:

  • Price
  • Space
  • Training style

If you wish to train on size and strength, the heavier dumbbells from the CAP Barbell Cast Iron Hex range will be quite useful.

For many mass building workouts, like the dumbbell bench press as well as dumbbell rows, you will be using similar weights for both the exercises. In such a case, you might wish to invest in the Hex Dumbbells of fixed weights than wasting your money on the plates of the adjustable dumbbells.

However, if you wish to train for a combination of size and strength, then you might be required to mix a low rep strength exercise with a few high rep isolation workouts, like lateral raises or concentration curls. In such a scenario, you can go for the adjustable dumbbells.

The CAP Barbell Solid Hex Dumbbells have been made up of cast iron in contrast to the tough plastic coating applied on some sets. This makes their usage more compact in comparison to the adjustable sets of dumbbells, and they allow a natural range of movement when curling. You can have a look at some of the best dumbbells for home gym for the purpose of comparison.

Yes, the adjustable sets require lesser space than the hex dumbbells. The decision of your purchase will also be based on the gym space or room space you can set aside.

CAP Barbell Cast Iron Hex Dumbbell Warranty

In case of any issue with the CAP Barbell Cast Iron Hex dumbbells, you can get in touch with the manufacturer through email or telephone or online. The CAP Barbell brand come with a 30-day warranty period. The warranty covers only defects in either material or craftsmanship.

It does not cover peeling of paint, rust, cuts and tears, rips, dents, handles being bent, loose heads in case the dumbbells are dropped or other signs of misuse, for instance, knocking dumbbells together.

CAP Barbell Cast Iron Hex Dumbbell Pros & Cons


  • The dumbbells have raised numbers pertaining to the weight of the dumbbell, and this avoids confusion.
  • The dumbbells weight is quite compact.
  • A lot of weight options are available
  • The bars are easier to grip by Knurling on the handle.
  • The shape of the dumbbells prevents them from rolling over.
  • A-frame storage racks are available
  • They are reasonably priced
  • They are durable and sturdy


  • Handles might need some polishing


People who wish to lift weights at home and are on the lookout for some of the best dumbbells set for beginners and do not wish to splurge on gyms can consider purchasing the CAP Barbell Cast Iron Hex Dumbbells 2021. There might be a few flaws in the design, however, the price and overall quality make the dumbbells worth buying.

CAP Barbell is a popular brand and is known for its high-quality fitness equipment and the hex dumbbells are known for their quality, just like the CAP Barbell Kettlebells.

These dumbbells are good for giving users a total body workout, they are easy to store and are better in comparison to adjustable dumbbells. So get yourself these dumbbells right away and give your fitness regimen a boost!