2024 Mizuno B21 Power Alloy USA Baseball Bat Review
Mizuno's B21 Power Alloy USA Baseball (-10) — a durable one-piece alloy with dependable pop at a value $75.99.
Been on the market a while — keep an eye out for in-season price drops.
Check today's price →The Score
How we score ↗How big and forgiving the barrel is — based on barrel length, construction (one- vs two-piece, alloy vs composite), and how it plays on balls hit off the center. A primary driver of the overall score.
Raw exit velocity and distance. We use measured numbers from freely available independent testing when they exist; otherwise construction and consensus, judged against the certification’s performance ceiling. A primary driver of the overall score.
Comfort and feedback on contact — vibration dampening from the knob/connection, the sting of a stiff one-piece vs a smooth two-piece, and the sound off the barrel. A primary driver of the overall score.
How well it holds up and how the company stands behind it — documented cracking/denting reports, cold-weather behavior, and the brand’s real warranty record. Good to know, but weighted lightly in the score.
Our take on price-for-performance — the overall package weighed against its cost and what comparable bats run. Shown for context; it is NOT factored into the overall score (price changes too often and is personal).
Why this score: Preliminary score from the bat's construction, class, brand and price — an honest first pass we refine as we test more and any independent lab data appears.
Our Review
The B21 Power Alloy is a durable one-piece aluminum USA bat with a balanced -10 swing, ready out of the wrapper. It's an entry-level barrel, but Mizuno's build quality and the price make it a sensible pick for younger hitters. Good value at $75.99.
Pros & Cons
Pros
- Durable Mizuno alloy, no break-in
- Balanced -10 at a value price
Cons
- Entry-level pop
- Stiffer one-piece feel
Full Specifications
| Brand | Mizuno |
|---|---|
| Model | B21 Power Alloy |
| Model Year | 2024 |
| Certification | USA Baseball |
| Sport | Baseball |
| Construction | One-piece alloy |
| Drop | -10 |
| Barrel | 2 5/8" |
| Swing Weight | Balanced |
| MSRP | $75.99 |
Where to Buy
2024 Mizuno B21 Power Alloy USA Baseball Bat — FAQ
Is the 2024 Mizuno B21 Power Alloy a good USA Baseball bat?
We rate it 6.1/10 (Grade C). Mizuno's B21 Power Alloy USA Baseball (-10) — a durable one-piece alloy with dependable pop at a value $75.99.
What drops does the B21 Power Alloy come in?
The 2024 B21 Power Alloy USA Baseball comes in -10.
Is the Mizuno B21 Power Alloy USA Baseball-legal?
Yes — it's USA Baseball certified by the WSU Sports Science Lab. USA Baseball (USABat) approved — a wood-like performance standard for youth USA leagues.
How much does the 2024 B21 Power Alloy cost?
MSRP is $75.99. We list the lowest price across CheapBats and Amazon on this page.
New to buying bats? Read our bat sizing guide, certifications explained, or browse all guides.
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Sources: CheapBats — Mizuno B21 Power Alloy Youth USA Baseball Bat -10oz 340568