Brunswick Crown 78U Review
The Brunswick Crown 78U puts the strongest core ever in a urethane ball — .046 differential in 78D urethane at $159.95. Video reviews inside.
Urethane is kind of in its own class, right? Throw another shot here. I do like being out in the gutter. Come on. Dangerous. That is dangerous for me. Not because I'm going to get in trouble, but because my confidence is going to go sky high. What's up, guys? Brunswick's back. It's time to introduce the Crown
78U. Now, the Crown 78U is a urethane ball 78 hardness with that tiered hexagon symmetrical core. Finally, a symmetrical urethane with a little bit of motor in it. So, I can't wait to see what this does in the lanes for me with Spektro running, of course. But, before we get to all that, please subscribe to my channel if you haven't already. Now, let's see what Crown 78U does out on the lanes. All right. End of the year, we're December,
and we're dropping a bombshell on everybody. New urethane, tour season's coming up. You know they like to have plenty of urethane options. And so far, Black Hammer for the last few years has been the number one out there on tour. Now, another option, 78U. It's got that tiered hexagon core. We're going to take a look at the numbers there cuz they have changed slightly due to the urethane cover. So, the RG slightly changed, raised a little bit to 2.549.
Differential bumped up a point 046. So, when you switch urethane versus resin covers, the gravity of that all changes, so they have to make some minor modifications to balance the weight, and get the total weights in check so that they can go ahead and make production. That's it. It's way above my pay grade. That's all I know. That's all I can tell you about it. So, urethane cover 78 hardness, and it's finished 500 1,000. So, this isn't going to be your typical review where I try it out in all different angles. I'm going to try to
focus this more on a urethane type look. So, let's start it out. Moving in, I got Spektro running. Let's Let's do this, right? I'm just going to start with my 15 zone like I normally do. We're going to see if this thing hooks like crazy the first shot. What a cool looking ball. Two color urethane, nice blend. Like I got like a purple and a black. Looks awesome. Let's see what it does first shot. Always hooks a lot on the first shot.
Anybody who's ever had a urethane ball knows and can attest to it is that the first shot you throw with it, you could pretty much throw it out. Don't worry about what it did. Just get it off your hand, get some oil on the cover cuz the first one's always going to hook a lot. And then as we go, oh, that's what we've been looking. This is one thing that Now, granted, I love Purple Hammer more than everything. I love Black Hammer, all that stuff. One thing you could not really get out of it unless you drilled like a 16 pounder and you had like a 500 rev rate was getting
this kind of flare. I don't throw that kind of rev rate as some of the pros to get it, but look what I can get out of this. Track flare. Now, is that going to benefit a urethane ball? Some say yes, some say no, but it's a different option. So, when the Pink Black Widow came out urethane, that thing flared a whole lot, had that big gas mask core in their A sim. Might have been a little overkill for most. This one, right in the middle. Let's try it again. Now, see if we throw that same shot,
if it still back ends hard like that or what. Yeah, see? Now, it mellowed out on the back. That's always what you get with urethane. Is the first shot just gone. Second shot tames in, and then it starts developing in what the ball is actually going to be for you. Urethane is controllable. You want it to dig in, and look at that. Now, obviously it takes a lot of the oil
off the front. People say, "Oh, it's going to carry down more." No. Urethane does not carry down oil any faster than a resin ball does. I'll die on that hill. Now, let's try it again. Maybe I'll make a small move right. Let's just move like two right off of that. >> [snorts] >> We'll keep inching towards the gutter. That'll be the plan. Oh.
Let's keep inching. Crazy how it goes from hook hook hook to no no no. By the way, I'm bowling on Crown Jewel, my favorite house shot. And there's a big puddle there. As I go away from the pocket with this ball, you see what just happened. Shoo! Smooth sailing. So, what's always important with urethane bowling balls? And I've said this in all the videos I've ever done is you got to get them started. You can't rely on the back end motion of a urethane ball because you're
probably not going to carry at that point. Or you're just going to leave some weird stuff, buckets, washouts, all that nasty stuff. So, you got to get parallel with the lane, start it up in the friction, and let it walk into the pocket. So, let's do that. Let's move out to 10. Let's keep getting closer and closer. Now, when I'm in competition, I like playing on the gutter with urethane. I like to see that ball start up soon, and get the most angle to the pocket.
Look at that. It doesn't have to be dramatic. It really doesn't. Now, the reason why you play it further out with urethane is because that entry angle we talked about. If you start it in the track and you play it like right up to the track, then you're probably going to leave a lot of flat 10s. That's just how it is for righty. You're going to leave flat 10s. You got to get closer to the friction to create more angle into the pocket and driving force. You want that ball not to go half pocket. If anything, you want to line up so that you either go flush or light mixer. That
half pocket kind of mixer hit, that's what you want. Let's do that again. I want to throw one more shot here on 10, and then see if we can't inch out to the right, and throw more speed. Hook. So far, it's looking really good. There's not a lot of craziness going on with this one. It's heavy rolling. I can see it flaring, but I don't see it like
doing anything erratic. Sometimes when you get a ball that flares too much with urethane, it just tends to get a little bit twitchy. Is that a word? Is that a good word? It just kind of either wants to hook or it just gets lazy. Seems like it wants to, but it doesn't do it. Or it starts up way too soon. I'm going to move two. I'm going to go out to like eight, and just keep shutting down these angles, getting out closer to the gutter. Sound good? Of course it sounds good. I love urethane videos.
Oh, okay. Got the hit on the 10. That's what I'm talking about. That might have been just a little bit too much half pocket. That would have been like a flat hit. I want to hit it just a little bit lighter than that if I'm going to be aiming there, but ultimately, I want to go high flush. But, if I can get that light mixer hit, I talk about that a lot too with urethane is you got to get that carry. You got to be able to get that spot where the ball just kind of hits that spot, mixes them up, on to the next frame. Like clockwork. All right, couple more shots. I'm still
on eight, by the way. Terrible rack. The five pin's way off spot in there. Eight pin time? Probably eight pin time. That's gutter. That's gutter. Hook. That ball That pin might be broken. I don't know. All right, so that tells me this ball is not going to dig in super early. I'm setting it down right in the friction, so I can probably dial the speed down a little bit, maybe get the hand involved a little bit.
I don't really try to hit it too hard or get around the side of it too much when I'm playing these outside angles cuz I don't want the ball to come off sideways. I don't want it to hit that friction. All right, I'm going to move to like six. Six board. Yeah. Let's just get uh Let's just get it into the lane. Yeah? Oh, hello. That's in the lane. Woohoo. Okay. Shutting them down quite a bit.
I could probably get my eyes right a little bit more towards the gutter. I was kind of pointed at it. I knew kind of I was in trouble from the start there. When you play that kind of high risk high reward shot out there, >> [snorts] >> you better be sure you got some hold and you got some hook to the right of you. Let's try it again. Those eyes little more right. Throw that same shot. Come on.
That is dangerous for me. Not because I'm going to get in trouble, but because my confidence is going to go sky high. When I got that look close to the gutter, and I can just stay out there cuz most people, let's face it, are going to be scared to play out there. And if you're in a tournament or whatever, they're going to be away from you. It's never going to affect you. You're out there all by your own. You know, like Nationals. Doubles [snorts] and singles out by the gutter. Nobody was out there with me. Yeah.
Once you get comfortable in this zone and you have that hold and you got that hook to the right, you can do a lot of damage out here. That's around the hand. Oh, oh. Come on. Ah, got the pin going the wrong way there. I might be a little too close to the gutter, but I might not. Maybe I need to go further out. Maybe I'm going to move a couple more boards and just keep inching. Let's move out to like four boards. And throw a couple shots and we'll wrap
up. My eyes are probably around four. I'm going to drift a little bit left, I would imagine, but let's keep that speed up and aggressive. Hook. Yep. It rolls different than the Black Hammer, Purple Hammer. I can see it kind of changing its axis and I drilled this the same. You know, normally with a ball that's 040 I'm not going to drill it with a 4-in pin if it's resin, but
for your thing's sake and there might be a comparison later, I don't know, but I just wanted to see how much different if you drill them the same. Obviously, I want apples to apples. Urethane is kind of in its own class, right? So, another shot here. I do like being out in the gutter. That's way out on the gutter. Get it. Yes. That's that light mixer hit. That's why you use speed,
your rotation, and the friction on the lane to your benefit. So, is that my favorite spot on the lane? I mean, we've kind of done this review quite a bit different and I always do the urethane ones different. So, I'm not going to mess around moving all the different zones and kind of getting way left cuz I'm never going to play that. I don't recommend you ever play that. So, I'm going to move back left just a little bit. Not much. Maybe like back to like eight, nine, somewhere in there. And uh just throw one more shot here.
I'm going to relax the speed a little bit to let it do its thing cuz this ball's very predictable. Rolls heavy, but not overkill. Ah, see? Can't end on that note, can we? 10 pins, I tell you. Once you get away from the pocket. The one thing I did notice on this ball is it's held its surface dang well. So, it's not shining up. It's not
overloading with oil. The cover feels good. And so, let's throw one more shot. I'm going to move back right and I use my speed, use the friction on the lane to my benefit here. Let's end this with a crunchy one, yeah? Ha, okay. Not crunchy, but we'll take that. Wally shot with urethane all day. I always tend to find that kind of carry aggravates your
opponents the most. Especially in this day and age of just powerful strikes and messengers. Give me the Wally all day. Carry percentage way up through the roof for me. So, that's it for the Crown 78U. Urethane coming back on the market this year. You thought we weren't? Surprise. Merry Christmas. So, that's all. Check out the crew. Memberships are available to you and also the merch on Inside Bowling. Check it out. If nothing else, please subscribe. Trying to get to 40K by the end of the year. It's going to
take a lot of work to get there, but it's okay if we don't. See you next video.
Performance Analysis
Performance Analysis
Testing on the Kegel Chromium pattern at Royal Crest Lanes revealed a well-balanced urethane that successfully avoids the historical pitfalls of strong-core urethane designs. The Crown 78U’s 2.55 RG and 0.46 differential provide enough core strength to prevent the premature roll-out characteristic of earlier low-RG urethane balls like the IQ 78 or Black Widow. Independent reviewers observed that despite the aggressive 1,000-grit urethane coverstock, the ball demonstrated surprising length through the front portion of the lane—picking up strongly around 30 feet before transitioning into a continuous, smooth arc toward the backend. Notably, the urethane cover’s oil-retention characteristics (it wipes oil around rather than absorbing it) actually work in this ball’s favor when paired with the stronger core, creating a more controlled friction response than expected from a urethane solid at this grit level.
The reaction shape proved notably different from comparable urethane offerings. Testing showed the Crown 78U sits squarely between the earlier, smoother Black Hammer and the cleaner, more responsive newer 2.0 models—sharper than the former but smoother than the latter. Reviewers found they could play slightly deeper lines than anticipated, with the ball reading the lane positively without the jerky, unpredictable behavior that plagues lower-RG urethane designs. Surface adjustments were minimal; the ball was drilled with a standard symmetric layout rather than the artificially strong layouts often required by weak-core urethane balls, allowing its intended motion to shine through. One testing note: the ball performed excellently on fresh, tougher conditions, though carrydown management differed meaningfully from both the non-flaring Black Hammer and the variable-flare 2.0, establishing it as a distinct tool rather than a replacement for either.
Who Is This Ball For?
For left-handed bowlers already invested in urethane arsenals (Purple Hammer, Black Hammer, Rattler, Shadow Tank, or similar), the Crown 78U appears to be a genuine must-have addition. Its unique motion profile—smoother than newer reactivates but more versatile than traditional low-RG designs—fills a legitimate gap in the lefty tournament toolbox and should integrate seamlessly into existing urethane selections.
Right-handed bowlers should approach this as a specialized addition rather than a general solution. It excels for bowlers with smoother, more controlled release mechanics who struggle with urethane’s typical early-heavy or delayed reactions. At $159.95, it’s fairly priced compared to competing urethane options, making it worth testing if your game tends toward slower ball speeds or deliberate, floating deliveries. However, if you’re seeking a Purple or Black Hammer replacement, this is not that ball—it’s a complementary piece that occupies its own space in a complete arsenal.
The Pros
- • Strongest core in any urethane ball — .046 differential
- • 78D hardness for consistent, predictable motion
- • Tiered Hexagon core gives it more hook than typical urethane
- • 'USABLE' strong-core urethane per Creating the Difference
The Cons
- • Still urethane — limited on heavy oil
- • More expensive than Pitch Black at $159.95
Who Is This Ball For?
The Brunswick Crown 78U puts the strongest core ever in a urethane ball — .046 differential in 78D urethane at $159.95. Video reviews inside.
Technical Specifications
How It Compares
More Videos (8)
Introducing Brunswick Crown 78U
Brunswick Bowling
BRUNSWICK CROWN 78U | Strong Core Urethane... But It's Good??
Luke Rosdahl
So We Have a Urethane that is 78 Hardness and Is USABLE | Brunswick Crown 78U Deep Dive
Creating the Difference
Brunswick Crown 78U | Graham Fach
Graham Fach
Brunswick Crown 78U | Adam Ishman
Brunswick Bowling
Brunswick Crown 78U | Tommy Jones
Brunswick Bowling
Brunswick Crown 78U | Conner Weston
Brunswick Bowling
Brunswick Crown 78U | AJ Wolstenholme
Brunswick BowlingVerified Bowler Reviews (8 reviews, 4.6/5 avg)
Not enough reviews for AI summary
Summaries generate automatically at 5+ reviews
Brunswick has added a PBA legal urethane option to the lineup. It has the tiered hexagon core which means this urethane ball will flare. I practiced on a THS and threw the Purple Hammer, Black Hammer Pearl, and Crown 78U to get a feel for where this ball fits. I only have about 3-4 boards difference between the three balls with the Crown 78U fitting right in the middle. It is a little later but a little more angular down lane than the Black Pearl. As you know with urethane, carry is key and that little more angular can make all the difference. This will be a good piece to have in your tournament arsenal, especially on short oil patterns.
I bought mine used one game from a friend in sport pattern league who had trouble getting it to hook or change direction. I didn't want to pay full price to just try it out, see if it's a boar anchor like the Hot Cell or not. So I tried it on a House shot first (Kegel Oil), and it worked like a regular ball, until I made the pattern much longer and then I moved in to see what it would do, and it worked fine. Then I tried in on Wolf 34 feet (Thin Brunswick Oil) game one and played up 2nd arrow to the 4 board and it worked fabulous for a 193 game, where about 4 of us were using urethane. Next I tried it on Viper 37 feet (Thin Brunswick Oil) 2nd arrow to about the 5/6 board and the ball was a little too weak sensing friction in the back end, and it stretched the pattern really fast becoming useless to me by Frame 3. I'm not sure what to think yet, maybe 37 feet of this thin oil was the limit, or perhaps I just needed more help breaking down the pair like on Wolf 34 feet. My Pitch Black seems more versatile to me, but I'm searching for some good 78D balls. I ordered a Hammer Purple Pearl 78D, let's see how that one works out for me. IMO, I think maybe the crown 78D diff of 43 is too much for what I play on, or I need to slow it down much more and see what it does.
Unlike other 78D and true urethane, this ball is a more usable piece on oily and drier conditions. It reads early and will change directions quickly earlier but does maintain a smoother punch down lane. It is a great middle ground when it comes to urethane options. more dynamic than the black 78d, and more tame than a real purple hammer. Don't sleep on this piece.
Frequently Asked Questions
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