2017 Marucci Cat 7 Review | Still Beautiful After All These Years

Marucci CAT 7 vs Easton MAKO Beast

Written by: Just Bat Reviews


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We played 12 games with the 2017 Marucci CAT 7 at players’ disposal, and many took us up on the proposal to take the new bat to the plate. We also spent at least 3 hours in the cage hitting with the BBCOR, drop 8 and drop 5 to come up with our 2017 Marucci CAT 7 Review.
2017 Marucci CAT 7 Review

You can read the full line of 2017 Marucci Bat reviews here. Amazon price check the CAT 7 here.


2017 Marucci CAT 7 Connect Review

Those looking for a mid price range performance bat, prefer an aluminum barrel, want a true balanced swing weight and can appreciate the feel of a single piece stick should seriously consider the 2017 Marucci CAT 7. Others who prefer composite, want an ultra light swing weight, would rather have an oversized barrel and/or prefer two piece bats should keep on looking.

This early in the game, the best price we found was here: Amazon.

Quick Review

2017 Marucci CAT 7 Review

On the whole, we surmise the bat belongs with those who prefer the stiff power of a one piece aluminum bat and its accompanying wood like experience, but also want a light swinging stick—which is a combination often impossible to find. The bat also boasts sting dampening on mishits (more on this later) and we’ve found, like the CAT 6 before it, this is a legitimate claim. In essence, the CAT 7 swings like a light swinging two piece composite but keeps the integrity of a wood bat feel. The ping is clean and loud and the look immaculate. Durability should be outstanding. The expanded sweet spot over the CAT 6, made possible by some inner barrel tapering, is noticeable and appreciated.

CAT 7 Video

2017 CAT 7 Sizing

2017 Marucci CAT 7 Review

Like previous years’ models, the 2017 CAT 7 will come in a variety of sizes for a number of different hitters. BBCOR, Senior League (2 5/8) in a drop 8 and drop 5 as well as a Junior Big Barrel drop 10.

The CAT 7 does not come in a traditional Drop 10 in the Big Barrel or Senior League space. Nor will it be released, at least as of this writing, in a youth (2 1/4) barreled size.

2017 CAT 7 Comparable Bats


No other bat on the market has the sting dampening mechanism found in the knob like the Marucci CAT 7. (That’s because Marucci owns the patent). So, if the lack of that feature is a deal breaker, your decision appears made.

The CAT 7 is in a unique class of light swinging single piece aluminum bats with an oversized barrel. The VELO from Rawlings is one similarly designed bat but even it has some exceptions. In particular, the VELO uses an extended composite end cap to drive the weight down. But both bats:

  • Are mostly an aluminum alloy
  • Use a similar tapered inner barrel design to expand the sweet spot
  • Have a loud ping on contact
  • Are built for the hitter who likes a light swing.

Although unique in its own right, the 2016 Axe Hyperwhip is also similar in the sense of a single piece aluminum with a tapered wall and a light swing weight. That bat, however, has an asymmetric knob and end cap.

Other bats in the light swinging class are of composite construction and those left in the single piece aluminum space are at best mid range swing weight (MOI) bats.

2017 CAT 7 Construction vs 2016
2017 Marucci CAT 7 Review

Compared to the 2016 CAT 6 there are a few notable changes. On the top of the list is the expanded usable sweet spot on the CAT 7 made possible by a new tapered barrel design. To be clear, the inside of the barrel is tapered to allow for more pop (flexibility) outside the center of the barrel. The idea isn’t new in the industry but it is new for Marucci who claims the design feature expands the sweet spot by double. It would be impossible for us confirm that metric, but we can confirm the sweet spot is bigger. This larger sweet spot when compared to the CAT 6 makes the CAT 7 a very worthy upgrade.

Additionally, Marucci claims to have retooled and improved the anti-vibration feature of the bat in the knob. From the outside looking in, although painted red, the piece looks similar. Any claimed improvement is only good news as we’ve loved this feature from the CAT 5 Squared nearly 6 years ago. How much improved we won’t be able to tell, but we know the new knob, like the old one, works.2017 Marucci CAT 7 Review

The anti-vibration insert in the knob addresses the age old ‘numb thumb’ problem for which single piece aluminum bats are infamous. That is, the vibration created from a mishit on a traditional single piece aluminum bat actually travels unimpeded from your barrel directly into your hands and then up your arms to your mouth where curse words are forced to form. It’s true. We’ve verified that many times.

The anti-vibration feature in the CAT 7 addresses this. It is a piece of composite rubber that sits inside the bottom the handle and knob and helps absorb much of that vibration so as not to reverberate all the way to your mouth. Other companies have addressed this problem by creating two piece bats with sting dampeners built within the transition. But, the argument goes, two piece bats disregard the value a real hitter gains from a bat with accurate feel and stiffness to the ball. Marucci would claim the CAT 7 and its predecessors keep the integrity of the swing while diminishing the vibrating consequences. Their argument is legit.

Like the CAT 6, the CAT 7 uses the same tacky and cushy grey grip, and from a color standpoint, not much has changed but some highlights here and there. The end cap is the same.

The CAT Name Explained

Best Bat for 12 year Old

If you don’t live where there are hurricanes, the CAT name may not ring a bell. Those who do, will recognize the CAT is in reference to hurricane categorizations. A Category 5 hurricane, for example, is the highest rated, most damaging hurricane with winds well over 200mph. A CAT 7 is reserved only for the movies. Or, in this case, the ball field.

2017 CAT 7 Overview


We’ve been big fans of Marucci’s commitment to smooth feeling sticks with massive power ever since we picked up the CAT 5 Squared from an eBay auction about 6 years ago. The anti-vibration knob does a remarkable job keeping sting off the hands—although maybe not as good a job as some two-piece bats, but it’s enough to be noticeable. The CAT series has recreated a wood bat’s power transfer and swinging experience as well, if not better, than any bat on the market. This year’s addition of a larger sweet spot and the hybrid will be well received.

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