2021 Easton Maxum Ultra BBCOR Bat Review
The Maxum Ultra revives Easton's Maxum legacy as a one-piece composite with the biggest barrel contour on any one-piece BBCOR bat. Seamless Carbon Construction gives it the stiff, direct feel of a one-piece with the smooth, oversized sweet spot only composite delivers.
There's a newer version available. See the 2023 Maxum Ultra — the current model → 8.2/10Price just dropped $310 — that's 78% off and a great deal right now!
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.
This bat: XXL barrel contour gives the biggest one-piece sweet spot Easton makes.
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.
This bat: Re-balanced barrel mass and composite trampoline produce strong pop.
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.
This bat: Seamless one-piece composite feel, smooth on contact with Flow-Tack grip.
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.
This bat: Composite one-piece; solid but benefits from proper break-in care.
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).
This bat: Flagship build at a deep clearance price is hard to beat.
Why this score: An outstanding barrel-first one-piece composite that is smooth, forgiving, and now a tremendous value. It gives up a little on swing weight for balance-seekers and the break-in window every composite requires.
Our Review
Easton built the Maxum Ultra around its Seamless Carbon Construction, a one-piece composite layup engineered to feel stiff and connected like a true one-piece while opening up a massive composite sweet spot. The headline is the XXL barrel profile, the largest contour Easton puts on a one-piece bat. Easton re-balanced the Ultra versus the earlier Maxum 360 by adding mass to the barrel, so it carries a slight end-load that rewards power and gap hitters with extra momentum at contact. As a composite, it benefits from a real break-in of roughly 150-200 swings before it fully opens up, after which the pop and forgiveness on off-center contact are excellent. The Flow-Tack grip is among Easton's best. A few model years on, it's a discontinued bat with flagship construction now selling at a deep discount, which makes it one of the better value plays in BBCOR for a hitter who wants barrel above all.
Pros & Cons
Pros
- XXL one-piece barrel is the largest contour Easton offers, with a huge sweet spot
- Seamless Carbon gives composite forgiveness with one-piece stiffness
- Now heavily discounted, making it a strong value for the construction
Cons
- Needs a real composite break-in before it fully performs
- Slight end-load won't suit hitters who want a dead-balanced swing
Full Specifications
| Brand | Easton |
|---|---|
| Model | Maxum Ultra |
| Model Year | 2021 |
| Certification | BBCOR |
| Sport | Baseball |
| Construction | One-piece composite (Seamless Carbon Construction) |
| Model # | BB21MX |
| Drop | -3 |
| Barrel | 2 5/8" |
| Swing Weight | Slight end-load |
| MSRP | $400 |
Where to Buy
2021 Easton Maxum Ultra BBCOR Bat — FAQ
Is the 2021 Easton Maxum Ultra a good BBCOR bat?
We rate it 8.6/10 (Grade A). The Maxum Ultra revives Easton's Maxum legacy as a one-piece composite with the biggest barrel contour on any one-piece BBCOR bat. Seamless Carbon Construction gives it the stiff, direct feel of a one-piece with the smooth, oversized sweet spot only composite delivers.
What drops does the Maxum Ultra come in?
The 2021 Maxum Ultra BBCOR comes in -3.
Is the Easton Maxum Ultra BBCOR-legal?
Yes — it's BBCOR certified by the WSU Sports Science Lab. Certified to the BBCOR .50 standard — the barrel is regulated to perform like wood, so it’s legal for high school and college.
How much does the 2021 Maxum Ultra cost?
MSRP is $400. We've seen it for $90. 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: Easton — 2021 Maxum Ultra BBCOR (BB21MX) · Retailer listing — 2021 Easton Maxum Ultra BBCOR (BB21MX)