Best Adjustable Dumbbells for P90X: Bowflex vs PowerBlock

Unless you have a big rack of dumbbells of differing weight right in front of you, it can be difficult manage your dumbbells while following real-time video in P90X. It’s especially challenging if you have limited space as various dumbbells can easily clutter up your workout space.

The best solution for most home gym aficionados is an adjustable dumbbell set. A good set replaces a huge rack of metal dumbbells, while taking up far less space. This makes it a no-brainer for apartment or condo dwellers. The other advantage is speed. Simply plop the dumbbells on the base, make your adjustments, and pull the set back up again.

There are two great options out there: the Bowflex SelectTech 552 set and the PowerBlock Classic set. Both are exceptional choices for P90X. Let’s look at the pros and cons of each so you can make the best choice according to your individual needs.

Bowflex SelectTech 552 Adjustable Dumbbells Review

The Bowflex dumbbell set has a space-age design that is impressively intuitive. At the far end of each dumbbell is a large dial that allows you to increase or decrease the weight as you see fit.

The weight settings go up in increments of 2.5 pounds. This gives you a great deal of flexibility, making the shift to heavier weights more manageable. Each dumbbell can be adjusted anywhere from 5 to 52.5 pounds each (2.27 to 23.8 kg).

The fact you can go up and down in such small increments comes in very handy for P90X. With a traditional small set including a pair of 10s, 15s, and 25s it can be tough to reach the sweet spot while doing a given exercise. Due to the 10 pound difference between the 15s and 25s, most people end up feeling they’ve chosen a dumbbell that is either too heavy or too light.

Bowflex SelectTech 552 Adjustable Dumbbells (Pair) Bowflex SelectTech 552 Adjustable Dumbbells (Pair)
List Price: $249.99
Sale Price: $247.99

The dumbbells measure 16” long which might make some P90X exercises awkward. Width on the other hand is perfectly manageable.

Although the design is appealing, come compromises were made to make the set so easy to adjust. The looseness between the plates is the biggest disadvantage to the 552s. The dial plus tiered system makes it possible for the metal portions to tap against each other. This might create a slight rattling sound when you are doing curls.

PowerBlock Classic Adjustable Dumbbell Set Review

This set from PowerBlock couldn’t look more different than the Bowflex SelectTech line. As the name implies each dumbbell resembles a rectangular block. The unique engineering plus color-coded buttons and components give it a future-retro vibe.

Each dumbbell can be adjusted between 5 and 45 pounds in 5-pound increments. In this area, the PowerBlock Classic set is trumped by the more flexible SelectTech 552 model. This limitation is exposed when certain P90X exercises either feel a bit too easy or too difficult. In a way less options are a good thing when you are making a split second decisions about which weight you should choose. With 5-pound increments the selections seem more obvious. Those that value simplicity may prefer this approach over the more exacting Bowflex scheme.

The most impressive characteristic of the PowerBlock Classic set is the solid feel the dumbbells have. This is partially due to the superior construction quality and partially due to the fact that all the pieces are rigidly held in place thanks to the design. You never feel like any plates are too loose as you do with the Bowflex.

Some care must be taken when you are aligning the pins to select the weight you want. It ceases to be a problem when you put it up on a table top or stand. If you are a somewhat clumsy or careless person you may want to get the Bowflex which is very forgiving in this regard.

The Verdict

If you are the type of person that values ease of use and flexibility the Bowflex is for you. It allows you to increase weight in 2.5 pound increments which is very useful when doing P90X. The drawback to this set is the looseness of the plates.

If you like designs that put ruggedness first, get the PowerBlock Classic set. It may look a bit strange to some but the engineering and quality components give it a solid feel. The drawback in this case is decreased flexibility. Adjustments are made in 5 pound increments rather than 2.5 pounds like the Bowflex set.