Adjustable dumbbells have become the defining home gym purchase — two units replace an entire rack of iron. The Bowflex SelectTech 552 uses a dial mechanism to select weight from 5 to 52.5 lbs in 2.5-lb increments. The PowerBlock Elite USA EXP uses a pin-in-tray system and expands from 5–50 lbs in the base set to 70 lbs with the expansion kit. Both cost around $350–$400. Both are the most-recommended dumbbells in their style by Garage Gym Reviews and Wirecutter. The choice between them comes down to how you train.
Bowflex SelectTech 552
The Bowflex 552 wins for most home gym users — the dial selection is fast, the weight range covers the majority of dumbbell exercises, and the rectangular plates make exercises like dumbbell bench press and floor press more comfortable. The PowerBlock Elite USA EXP wins for heavier lifters who need the 70-lb expansion and don't mind the blocky form factor. Both are excellent. Bowflex's design is more enjoyable to use day-to-day.
Specs Comparison
| Spec | Bowflex SelectTech 552 | PowerBlock Elite USA EXP |
|---|---|---|
| Weight Range | 5–52.5 lbs | 5–90 lbs (with expansions) |
| Increment Size | 2.5 lbs (low) / 5 lbs (high) | 5 lbs |
| Selection Mechanism | Dial | Pin |
| Handle Length | ~17.5" | ~12" |
| Warranty | 2 years | 10 years |
| Origin | Imported | Made in USA |
| Price (base set) | ~$349 | ~$349–$389 |
Weight Selection Mechanism
Bowflex's dial-and-slide system is genuinely satisfying to use. Rotate the dial on each end to your chosen weight, then lift — the unused plates stay in the tray. The mechanism is smooth from 5 lbs to 52.5 lbs in 2.5-lb increments (5-lb increments above 25 lbs). Users on r/homegym consistently call it the fastest selection mechanism for traditional exercise flow.
PowerBlock uses a pin that drops into numbered holes in the weight tray. It's fast — about the same speed as Bowflex in practice — but the motion feels different. Some users find the pin system more intuitive, particularly during circuit training where you're swapping weights frequently. Garage Gym Reviews timed both at roughly 3–5 seconds per weight change.
Shape and Feel in Hand
The Bowflex 552 uses rectangular weight plates that approximate the shape of a traditional dumbbell better than any competitor. For exercises like dumbbell bench press, RDLs, or floor press, the rectangular shape doesn't interfere with range of motion. The handles are comfortable with moderate knurling.
PowerBlock's block design is compact but distinctly non-traditional. The square, open frame can dig into your wrists on certain movements — notably dumbbell chest press where you want to fully supinate. Users on r/homegym describe the feel as 'takes getting used to.' The compact size is an advantage for storage and doesn't roll away on the floor.
Weight Range and Expandability
The Bowflex 552 tops out at 52.5 lbs — adequate for most exercises including curls, rows, lateral raises, and shoulder press. Advanced lifters who want to dumbbell bench press at 70+ lbs will find the ceiling limiting. There's no official expansion option.
The PowerBlock Elite USA EXP starts at 5–50 lbs and expands to 70 lbs with the Stage 2 expansion kit (sold separately, ~$99) and 90 lbs with the Stage 3 kit. This makes it a better long-term investment for progressing lifters. The 'USA EXP' version is manufactured in the United States, which contributes to its slightly higher durability reputation.
Durability and Warranty
Bowflex's main durability concern is the plastic dial mechanism. The selector dial has been known to crack or strip in the 5–10 year range with heavy use. Bowflex offers a 2-year warranty on the 552. Users who've owned these for 5+ years consistently report the handles and weights lasting; the dial is the weak point.
PowerBlock's all-metal pin and tray mechanism is more durable by design — fewer plastic components in the selection system. The USA EXP's domestic manufacturing gives it a durability edge over PowerBlock's lower-cost import lines. PowerBlock offers a 10-year warranty on the Elite USA EXP — significantly longer than Bowflex's 2 years.
Bowflex SelectTech 552 Strengths
- Dial selection system is fast and intuitive
- Rectangular plate shape works better for bench press and floor work
- 2.5-lb increments at low weights for better progression
- Popular resale market if you upgrade later
PowerBlock Elite USA EXP Strengths
- Expandable to 70 lbs (and 90 lbs) with expansion kits
- 10-year warranty vs Bowflex's 2-year
- All-metal pin mechanism is more durable than plastic dial
- Manufactured in the USA
Bowflex SelectTech 552 Weaknesses
- 52.5 lb max — no expansion option
- Plastic dial mechanism can crack over many years
- Only 2-year warranty
PowerBlock Elite USA EXP Weaknesses
- Block shape interferes with some pressing movements
- Expansion kits add $100–$200 to total cost
- Less intuitive for beginners unfamiliar with pin systems
Best For
- a: Most home gym users who want the best all-around adjustable dumbbell experience with a traditional feel and fast weight changes
- b: Serious lifters who need 70+ lbs, want a 10-year warranty, and prioritize long-term durability over handle ergonomics
FAQ
Can you drop Bowflex SelectTech 552 dumbbells?
No. The manual explicitly prohibits dropping them. The dial mechanism and plastic housing can crack from impact. If you're doing sets where you'll drop the weight, look at traditional iron dumbbells or PowerBlocks, which tolerate light drops better.
What's the PowerBlock Elite USA EXP expansion process like?
Straightforward. The Stage 2 expansion kit adds sleeves and weights that insert into the existing block, extending it to 70 lbs. No tools required. The weight increments remain 5 lbs throughout the expanded range.
Are adjustable dumbbells worth it over a full dumbbell rack?
For home gyms with space constraints, absolutely. A full set of fixed dumbbells from 5 to 50 lbs costs $1,200+ and takes up 6–8 feet of rack space. Adjustable dumbbells achieve the same in two units and two tray footprints.