Cast Iron Adjustable Dumbbells

Last updated: May 9, 2019

Cast Iron Adjustable Dumbbells

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We looked at the top and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Adjustable Dumbbells you should buy.

Overall Take

In our analysis of 193 expert reviews, the Cast Iron Adjustable Dumbbells placed 12th when we looked at the top 13 products in the category. For the full ranking, see below.

From The Manufacturer

This set consists of a pair of brand new 105lbs (52.5 lbs x 2 pc) adjustable dumbbells (5 lbs x 16pc, 2.5 lbs x 4pc, 1.25 lbs x 4pc, handle x 2pc, collar x 2pc). Not everyone who is interested in getting a better body through strength training has the necessary room in their home for a dozen or more sets of dumbbells. This adjustable and versatile dumbbell kit is small, convenient, and easy to store. You will be able to perform the widest variety of exercises by working out with varying weights. The kit is simply the best and a must have!

Expert Reviews

Expert Summarized Score

11 expert reviews

User Summarized Score

556 user reviews

What experts liked

Offers a fast, easy set up and no frills design. Relatively compact.
- BestReviews
The set includes sixteen 5-pound plates, four 2.5-pound plates and four 1.25-pound plates. Each dumbbell handle weighs 5 pounds, and there are also two screw-on collars to secure the dumbbells.
- Much Needed
Convenient as its handles are comfortable and offer a firm grip.
- Rainy Day Fitness
The plates and handle on these dumbbells are cast iron, so they will not break or wear down with use over time.
- ratingle
Chrome bars resist corrosion and rust, and have textured center for strong grip.
- Garage Gym Power
Threaded ends and handle provide a secure fit so that you don’t have to worry about the weights falling off and injuring you.
- Sport Consumer
Made with high-quality cast iron weights and solid chrome handles,these are durable weights that you can count on.
- Runner Click
The handles and collars are threaded for a totally secure fit.
- The Top 10 Best Reviews
October 22, 2017 | Full review
No wobbling after multiple sets and No “oily” smell that I kept reading about.
- Adjustable Dumbbells Cheap

What experts didn't like

The paint is prone to chipping --scrubbing the dumbbells before use often resolves this problem.
- BestReviews
The main problem I have with the dumbbells is that they’re a little bulky. The dumbbell is already somewhat larger than your standard dumbbell, and balancing the larger size takes a bit of getting used to. .
- Much Needed
Requires regular maintenance, such as tightening the loose nuts.
- Rainy Day Fitness
The knurling, or texture of the handle, on these dumbbells is very rough and can result in callouses and irritation on your hands.
- ratingle
16” long to accommodate a lot of weight, longer than most sets.
- Garage Gym Power
May not offer enough weight in order to keep some athletes content.
- Sport Consumer
No cushioning or protective storage.
- Runner Click
Changing the weight can be tricky.
- The Top 10 Best Reviews
October 22, 2017 | Full review
Does require extra maintenance (chrome flakes, rust protection.
- Adjustable Dumbbells Cheap


When it comes to gym equipment, dumbbells are the most versatile. They are an excellent tool for building muscle, and they can be used by almost anyone. Whether you are a novice with a physical limitation or an advanced athlete, adjustable dumbbells can be incorporated into your workout routine. For example, you can use low-weight dumbbells while seated, or add pounds to the dumbbells to use while standing.

Perhaps the first feature you’ll want to look for when shopping for adjustable dumbbells is shape. While the majority of dumbbells are made up of the traditional wheels with a metal bar in between, there are models with a square or hexagon shape. There are several benefits to each design. For example, dumbbells that have a square shape will rest flat on the ground. That means you’ll be able to do push-ups off of them. Of course, the circular models may feel more comfortable to hold, depending on your preferences.

Next, determine your total goal in pounds for lifting weights. Look for a set of dumbbells that will allow you to work your way up to that specific weight. So if you want to max out at 50 pounds, you don’t want to buy a set of adjustable dumbbells that only offer a total of 40 pounds. Otherwise, you’d never reach your goal, or you’d have to fork over money for a new set of dumbbells.

While reviewing the total weight, you’ll also need to look for the starting weight and what increments the dumbbell set uses to work you up to your total goal weight. Are there 2.5, 3 or 5-pound increments? Is it easy to add each new weight to the dumbbell? You want to be able to work at your own pace to reach your desired results.

Make sure the set of free weights you’re interested in is made of quality material. It is common to see adjustable dumbbells made of metal, rubber or metal and rubber.

Consider whether the dumbbells have any special features. For example, some models have ergonomic grips so your hands don’t slip when you start to work up a sweat. You’ll also want to look for threaded collars that allow for a more secure fit, a finish that prevents rust and corrosion and weights that are compact enough to fit in your storage space.

Buying Advice

  • To maintain your free weights and keep them in excellent shape, you’ll need to set them down carefully at the end of each session, instead of throwing them on the floor. Not only is this bad for the dumbbells, but it could potentially damage your floors as well. Equally as important is not banging the free weights together.
  • Cleaning is also essential to your maintenance routine. Simply mix a little dish soap in warm water, and use the solution to wipe down your gear. Afterward, you’ll need to take a clean dry cloth and dry off the dumbbells. If you allow the weights to air dry, they may rust, so don’t skip this step unless your dumbbells are made entirely of rubber.
  • Even though adjustable dumbbells can be used by almost anyone, it is still important to learn the proper form before attempting to exercise with the free weights. You’ll want to check out reputable online videos or consult with a personal trainer to learn the best way to use the equipment so that you don’t pull or injure your muscles in any way.
  • Some adjustable dumbbell models come with expansion kits. For example, some dumbbells are up to 50 pounds, but workout enthusiasts who want to push themselves can often order a 70- to 90-pound expansion kit without having to purchase a whole new set of free weights. This is an excellent option to have if you think anyone in the home may eventually surpass their original goals.
  • Look for the opportunity to connect to the company’s app. Bowflex has a free download that its customers can take advantage of. With the app, you can create a workout, follow workouts that are already downloaded to the app and track your progress in the area of physical fitness.
  • The price for adjustable dumbbells varies based on features and the total weight offered. No matter what, you’re sure to find a set that fits your budget.