MX Select MX100 Evolution Series
BarBend's best-adjustable pick with a full 10-to-100-pound metal mechanism, held back only by thinner long-term owner data.
Consolidated from 6 independent outlets
Where the cited sources landed, as we read them
- 4 positive sources
- 2 mixed sources
1 of 3 research runs entered this as a product to avoid rather than a pick.
Top-of-market money for a brand-new, unproven mechanism with owner-reported weight inaccuracy; the PowerBlock Elite USA 90 EXP offers proven durability and the Snode AD80 offers cast iron toughness instead.
Flagged 10 September 2026
Pros & cons
- ✓ Metal-forward mechanism
- ✓ Wide 10-to-100-pound range
- ✓ Named the best adjustable dumbbells in BarBend's tested guide
- ✓ Cageless design and micro adjuster plates are smart and easy to use
- ✓ Standout features against more than a dozen tested competitors
- ✗ Thinner long-term owner-report volume than PowerBlock or Snode
- ✗ Owners report real inaccuracy in the actual weights
- ✗ New, unproven mechanism at a top-of-market price
The sources behind this ranking
We searched the web and YouTube for what has been published about this product, then read the articles, video transcripts and comments we found.
Evidence 2 articles, 1 video review and 3 community sources
4 positive sources
BarBend Kate Meier, NASM-CPT, USAW-L1, CF-L1 · reviewer · Jan 2023 The MX100 Evolution Series dumbbells are our pick for the best adjustable dumbbells thanks to a few standout features, such as a 10- to 100-pound weight range per ‘bell, a choice between rubber or knurled handles, and steel plates that give the whole set a solid, built-to-last feel.Read K
King of the Gym King of the Gym · 1.6K subscribers · Jun 2025 And even though it has some issues, most notably the balance, it's still a piece that I consistently use. In this review, I'll break down what makes it unique, how it compares to the Bowlex 2080 system, what it's like to train with, and whether it's worth the $700 price tag.Watch I Instagram Instagram post
Train heavier, move quicker, and keep your setup clean with the MX100 Evolution Series Dumbbells.View post K
Kingofthegym Article Best Adjustable Curl Bar: MX Select MX100 Adjustable Curl Bar/Straight Bar SetRead
2 mixed sources
I got a pair of MX Select 100s. The design is nice, but have quite a clank because it's not very snug between the 10 lbs. handle and the adjustable/weight change plates. Otherwise they're great.Read thread F Facebook Facebook post
The MX55 and MX100 Evolution Series are the most talked-about models, with owners praising the solid feel but noting small quirks like plate alignment and handle grip preferences.View post
Frequently asked questions
It ranks #10 of 17 on our adjustable dumbbells tier list, in C tier. That placement draws on 6 independent outlets.
None of the 6 sources with a clear view is critical of it. Thinner long-term owner-report volume than PowerBlock or Snode. Owners report real inaccuracy in the actual weights. New, unproven mechanism at a top-of-market price.
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