The PowerBlock Pro 50 suits lifters who will never need more than 50 lb per hand and want every 2.5 lb step available, while the Pro 100 EXP suits anyone who expects to press, row and curl heavier than that and is willing to grow the set in stages. The Elite EXP sits between them for people who want a lighter-priced expandable path and a smaller overall block. This guide lays out the stated weight ranges, size, handle and trade-offs so you can match the right model to your training plan.
Our top picks
As an Amazon Associate we earn from qualifying purchases at no extra cost to you.
Pro 50 vs Pro 100 EXP at a Glance
| Model | Stated range per hand | Expandable? | Approximate size at top weight | Best for | Main limit |
|---|---|---|---|---|---|
| PowerBlock Pro 50 | 5 to 50 lb in 19 settings, 2.5 lb steps (reviewers report no missing weights) | No, no expansion kit exists | Reviewers list about 12.5 x 7 x 7.25 in | Beginners, intermediates, small spaces | Ceiling of 50 lb per hand |
| PowerBlock Pro 100 EXP | 5 to 40 lb base, then 60, 80 and 100 lb with expansion kits | Yes, four stages | About 19.2 x 7.6 x 7.7 in at 100 lb | Heavy lifters, long-term growth | Skipped weights and a long block at the top |
| PowerBlock Elite EXP | 5 to 50 lb base, then 70 and 90 lb with kits | Yes, three stages | Shorter than the 100 lb Pro set | Mid-weight lifters wanting expansion | Tops out at 90 lb |
Figures above come from the maker’s published ranges as relayed by independent reviewers such as King of the Gym and Garage Gym Reviews. Dimensions vary slightly between sources, so treat them as approximate and confirm against the manual that ships with your set.
Which PowerBlock Models Exist Now
PowerBlock sells several families, and the names overlap enough to cause confusion. The Sport line is the entry level, with the Sport 24 covering lighter loads. The Pro line uses a larger, more squared frame with a thicker handle, and it includes the Pro 32, the Pro 50 and the expandable Pro EXP versions. The Elite line, including the Elite EXP and the Elite USA 90, is the line most often compared with the Pro models, and there are also commercial versions for gyms.
One point to keep straight: sources disagree about the exact stage layout of the Pro EXP. PowerBlock’s own expansion guide, as summarized by reviewers, describes a Pro 100 EXP that starts at 5 to 40 lb and climbs to 60, 80 and 100 lb. An older comparison describes a Pro EXP that stops at 90 lb. The Pro 100 EXP layout is the current one that is documented most consistently, so this article uses it. If you are shopping for a different Pro EXP configuration, read the maker’s product page for the exact stage numbers before ordering.
PowerBlock Pro 50 Explained
The Pro 50 is a single, non-expandable set. Reviewers report a range of 5 to 50 lb per hand with 19 settings in 2.5 lb jumps, and they point out that this makes it the only model in the lineup with no missing weights. That detail matters for progressive overload: moving from 25 lb to 27.5 lb on a lateral raise or curl is a realistic step, whereas a coarser set forces larger jumps.
Reviewers describe the handle as about 38 mm thick with a contoured grip, wrapped in a shell of urethane-coated steel plates. It is a block design, so the weight sits around the hand rather than on the ends like a traditional dumbbell. Its footprint is compact at roughly 12.5 inches long when set to 50 lb, which keeps it practical for apartments and shared rooms. One review estimates it replaces about nine pairs of fixed dumbbells.
The limit is obvious: if you finish sets of dumbbell presses at 50 lb comfortably, there is no kit to grow into, and PowerBlock does not make one for this model. For many people that is fine. Curls, lateral raises, rows, split squats, shoulder presses and most conditioning work sit comfortably under that ceiling for beginners and intermediates. Heavy chest pressing and one-arm rows for stronger lifters tend to outgrow it.
PowerBlock Pro 100 EXP Explained
The Pro 100 EXP starts as a base set from 5 to 40 lb per hand and then grows through three additional kits, each adding 20 lb to every dumbbell. Reviewers cite stages of 40, 60, 80 and 100 lb, and they describe the full build as replacing about 30 pairs of fixed dumbbells. Weight is changed with a magnetic pin for large jumps plus small add-on weights for 2.5 lb and 5 lb adjustments.
The trade-off is that expandable PowerBlocks do not offer every 2.5 lb step through the whole range. Garage Gym Reviews notes that selections such as 12.5, 22.5 and 32.5 lb are not available as you move up the stack, which leaves about ten skipped weights. For most lifters that is an acceptable cost for the extra range, but if you are chasing small increments on isolation work you will notice it.
Reviewers report a 38 mm handle, available as a rubber grip or a knurled stainless steel option. At full 100 lb the block measures roughly 19.2 inches long, 7.6 inches wide and 7.7 inches high, which is long by home-gym standards. Garage Gym Reviews also cautions that the cage-style frame can restrict range of motion on movements such as goblet squats and Arnold presses once the weight is heavy, though bench pressing and rowing remain workable.
Differences from the Elite EXP
The Elite EXP is the model most often put next to the Pro 100 EXP. Reviewers describe it as an expandable set with a first stage of 5 to 50 lb in 2.5 lb steps, then 70 lb and 90 lb after two 20 lb expansion kits. It adds an auto-lock mechanism for the micro weights, and reviewers list a five-year residential warranty from the maker. The block is smaller than the Pro 100 EXP at top weight, but it also stops at 90 lb.
Kit compatibility is a trap. Reviewers report that Pro and Elite series expansion kits do not fit each other’s sets. They also say Elite EXP kits and the older Elite USA kits are not interchangeable: an Elite EXP kit physically fits an Elite USA but sits proud with a visible gap, and an Elite USA kit will not fit an Elite EXP at all. Buy expansions that match the exact model name on your handle.
Heavy Lifters: Is 100 lb Realistic?
If you already press 60 to 70 lb dumbbells for sets of eight, the Pro 100 EXP gives genuine headroom, and the four-stage design means you can buy only the stages you need now. Stage 2 gets you to 60 lb, Stage 3 to 80 lb and Stage 4 to 100 lb. The extra length at the top end is the price. Plan floor space, and plan for a stand that can hold it, because the common compact stands do not list this model (see the stand section below).
Those who rarely go beyond 70 lb may find the Elite EXP at its 70 lb stage easier to live with, as its block stays shorter. Those who regularly use 100 lb in each hand for presses or rows should also consider whether a traditional dumbbell set or a screw-lock system would suit them better, since block-style sets are bulky at their maximum.
Pick X If… Decision Table
| If this describes you | Better fit | Why |
|---|---|---|
| You train in a small room and want one fixed purchase | Pro 50 | Compact block, no missing weights, no expansion decisions |
| You are new to lifting and want fine 2.5 lb steps | Pro 50 | 19 settings from 5 to 50 lb |
| You already press 50 lb or more | Pro 100 EXP | Room to climb to 100 lb per hand |
| You want to start cheaper and add weight later | Pro 100 EXP or Elite EXP | Staged kits add 20 lb per dumbbell at a time |
| You need small steps at all weights | Pro 50 | Expandable sets skip about ten weights |
| You want a shorter block and need 70 to 90 lb at most | Elite EXP | Smaller footprint than the 100 lb Pro build |
| You want a traditional dumbbell feel | An alternative brand | Block frames feel different from handles with open ends |
Alternatives Worth Comparing
Bowflex SelectTech 552 and 1090
Reviewers list the 552 at 5 to 52.5 lb with 2.5 lb steps at the lighter end and 5 lb steps after, and the 1090 at 10 to 90 lb in 5 lb steps. Both use a dial that changes weight in about two seconds. Reviewers note the 552 uses plastic internals and is not drop-proof. A June 2025 recall notice from the U.S. Consumer Product Safety Commission on the 552 and 1090, over plates that can dislodge, has been reported, so read the recall notice and the maker’s guidance before buying either one new or used.
Nuobell
Nuobell uses a twist handle and a more traditional dumbbell shape. Reviewers report 5 to 50 lb or 5 to 80 lb versions in 5 lb steps. It is a good match for people who dislike block-style frames, though it usually costs more than comparable PowerBlock builds.
Ironmaster Quick-Lock
Ironmaster uses screw-lock plates. Reviewers describe base sets of 5 to 75 lb, with add-on kits that reach up to 165 lb, in 2.5 lb steps. It is all steel and drop-proof, with a lifetime warranty per reviewers, but a weight change takes 15 to 20 seconds. It suits strong lifters who value durability over speed.
Before You Buy: Safety and Setup
Follow the maker’s stated weight limits and assembly instructions for every set and expansion kit. Confirm the pin or selector is fully seated and the handle is locked before lifting, and never use damaged blocks. Choose a stand or bench rated for the load, and place heavy sets low rather than lifting them overhead from a cramped position. If a movement causes pain, stop. Anyone with a joint, back or shoulder injury, or a medical condition, should consult a qualified professional before choosing a load or exercise.
Frequently Asked Questions
Is the PowerBlock Pro 50 expandable?
No. Reviewers report that the Pro 50 is a fixed 5 to 50 lb set and that PowerBlock does not make an expansion kit for it. If you think you will outgrow 50 lb, start with an expandable model such as the Pro 100 EXP or Elite EXP instead.
How heavy does the Pro 100 EXP go?
Reviewers cite a base range of 5 to 40 lb and three expansion kits that bring each dumbbell to 60, 80 and 100 lb. Each kit adds 20 lb to every dumbbell, so you buy only the stages you need.
Does the Pro 100 EXP have every 2.5 lb increment?
No. Reviewers note that expandable PowerBlocks skip certain weights as you move up the stack, such as 12.5 and 22.5 lb, which leaves roughly ten missing selections. The Pro 50, by contrast, is reported to have no missing weights.
Can I mix Pro and Elite expansion kits?
Reviewers say they are not compatible. Pro and Elite series kits do not fit each other’s sets, and Elite EXP and Elite USA kits are not interchangeable either. Match the kit to the exact model name before ordering.
Is a thick 38 mm handle comfortable?
It depends on your hand size and training. Many lifters find it fine for presses and rows, while smaller hands may tire sooner on long curl sets. Grip options on the Pro 100 EXP include rubber and knurled versions, so consider which feel you prefer.
Which is better for a small apartment?
The Pro 50 is the more compact choice at about 12.5 inches long at top weight. The Pro 100 EXP grows to roughly 19 inches at 100 lb, so it needs more floor and rack space.
