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Srixon Z 745 irons: A modern cult classic?

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For professional and amateur golfers alike, we all share one common goal: to hit our approach shots as close as possible to our intended target. The clubs used most for these shots are irons, and since, for pros, these are the real “money makers,” when they find something they like, they tend to stick with it. (We can say the same thing about putters too)

With irons in mind, I present to you the Srixon Z 745. Released all the way back in 2013, and now officially three models old, these continue to be spotted on a weekly basis all over the PGA Tour and in many better players’ bags alike. At this point, as a club junkie, I’m ready to declare the Z 745 a “modern cult classic” (cue confetti cannons and air horns).

But why?

Its a simple question with a less than simple answer, but I have a few theories, along with some tech talk that might shed some light on why the Z 745 already has a coveted spot on the cult classic irons list.

Let’s talk business first: Cleveland Srixon is a big golf company, and if you pay attention to many of its staff players’ bags, you will see that there doesn’t seem to be a lot of pressure to change into the newest gear if players are happy. A prime example of this is Rod Pampling, who still uses Cleveland 588MB-shaped (easy to spot this) Srixon “Z” irons (see below). If these aren’t rebranded Cleveland 588 MBs, I’ll eat a pair of socks…

So, let’s get back to the Z 745. This was a big step forward in design as Srixon was reestablishing its irons in North America. A lot of “new” (former Cleveland-focused) staff players quickly made the switch to these. What’s not to love? Shorter compact blade length, beautiful straight top line, not too thick or thin, no badges, forged, well-designed, loft gapping starting at a 46 degree PW, and last but in NO way least the aggressive V.T. Sole design with raised heel and toe. There’s just something about this iron that WORKS!

Speaking to Ian Fraser from Tour Experience Golf (TXG), when asked about the 745s, he had this to say

“The Z 745 were created in a perfect storm; you have a high-quality Endo forging, appealing aesthetics with sharp lines, v-sole and tungsten in the toe to relocate CG. It was one of the fastest players irons we tested at the time”

From personal experience and a retail perspective, I can tell you that at the brand-agnostic custom shop I worked at when these came out, we were selling these at a faster rate than any other single players CB. PERIOD. As a forged iron and used club fanboy, whenever someone asks me about looking for a nice set of used forged irons the 745s are high on my list. This isn’t to say that the following Z765 series wasn’t great, but from judging the adoption rate, there was clearly something about the “45s” that kept them in players’ bags. Even now we see these in a LOT of Srixon staffers and non-staffers bags alike

Keegan Bradley’s bag

Jerry Kelly’s Bag

Jon Curran’s 745s

Even non-staffer and ball striking machine Brian Gay is still rocking a combo set of both Z 545 and 745 irons, along with an Adams Super 9031 (but that’s another story) . On a side note, can we all just take a moment to again acknowledge that BG is a machine. He has one of the slowest swing speeds on tour at 105 mph but has four total wins, just under 22 million in career earnings, and is currently inside the top 100 on the money list. Basically, it proves that with enough practice, I still have a chance to one day play on tour!

I think if you pressed hard enough, you could even get the team at Srixon to admit that the 785s are more of a return to the 745 design features and shape than a progression from the 765s. With the more centered mass in the cavity (a looks thing) and a less rounded toe and topline profile from address, it’s easy to see the inspiration. Even in our own GolfWRX forums, players of all abilities seem to still love and hold onto their Srixon Z 745 irons.

It’s official: Srixon Z 745 irons are modern cult classics.

Do you have a set of Z 745 irons still? Why do you love them? Why have you stuck with them like so many tour players? Would love to hear your feedback in the comments section.

 

 

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Ryan Barath is a writer & the Digital Content Creation Lead for GolfWRX. He also hosts the "On Spec" Podcast on GolfWRX Radio discussing everything golf, including gear, technology, fitting, and course architecture. He is a club fitter & master club builder who has more than 16 years experience working with golfers of all skill levels, including PGA Tour professionals. He studied business and marketing at the Mohawk College in Hamilton, Ontario, Canada, and is the former Build Shop Manager & Social Media Coordinator for Modern Golf. He now works independently from his home shop in Hamilton and is a member of advisory panels to a select number of golf equipment manufacturers, including True Temper. You can find Ryan on Twitter and Instagram where he's always willing to chat golf, from course architecture to physics, and share his passion for club building, and wedge grinding.

45 Comments

45 Comments

  1. Jason

    May 23, 2019 at 4:20 pm

    I have 2 sets of 745s bought new for about $400 each. Play them in two different states. I love these irons and won’t be changing them for a long time.

  2. JP

    May 14, 2019 at 10:36 pm

    Roger Dunn Golf Shoo in Santa Ana has a LOT of these sets in used condition that look NEW! They have boxes upon boxes of them stacked up. And they were CHEAP! Was in the store last week.

    • rosie

      Jun 4, 2019 at 9:25 pm

      i just called them they said they had none . Where did you see this ? Thanks.

  3. Harvey Thomson

    May 8, 2019 at 5:14 pm

    Well, I have to admit my combo set of 745/945 are back in the bag and I’m glad I didn’t get rid of them.

  4. .

    May 1, 2019 at 11:42 pm

    Did they continue to add more and more tungsten for forgiveness in each gen of the 745-756-785? Like Titleist does with the AP2’s, they keep cramming more and more tungsten in each gen of irons for extra forgiveness in yet still a “players cavity back” design?

  5. ChipNRun

    May 1, 2019 at 11:53 am

    I have hit the Z745 and Z765 irons at multiple demo days, and really liked them and WANTED them. Alas, however, I have a swing that NEEDS the Z545 and Z565 irons.

    The Z5– and Z7– irons are at the top of the list for cool irons I have never owned. (My wife says two bags full is enough).

  6. Wes B

    Apr 30, 2019 at 8:43 pm

    I play the 565(4-5)& 765(6-pw)combo set with KBS Tour 125 S+ shafts and absolutely love them! I’m kind of afraid to try the 745 or 785 because I might like them too much. I wanted the 765 over the 45’s because the blade length was slightly longer and I thought it would be a little more forgiving/confidence inspiring while maintaining the same feel. The only thing I’m not a big fan of is the more rounded top line on the PW as apposed to the perfect shape and thickness of the rest of the set. I should also mention how seamless the transition between the 565 5 iron and 765 6 iron is. You can not tell the difference at all looking at them from address.

  7. FirePro

    Apr 30, 2019 at 8:51 am

    as someone that changed my irons every year I have yet to even think about getting rid of my Z745’s. A couple shaft changes has kept my tinkering addiction satisfied and I now feel that I have found the perfect storm with the Z745 heads and KBS $-Tapers.

  8. Justin M

    Apr 29, 2019 at 11:22 pm

    I love my 745/945 split set. I originally had issues with the topline of the scoring irons being to think, so I decided to get a used set of 945’s to swap out the heads of the 8-pw pw. Now I have the greatest set of irons ever after shafting them with kbs tour v x-stiff. Softest feel ever, amazing control and somehow maintain high spin with good length. I’ve tried just about every players iron that has come out over the last few years and nothing compares.

  9. WESTSIDE GOLFER

    Apr 29, 2019 at 11:01 pm

    I’ve played Several sets of Mizuno and Titleist CB’s and MB’s and Wilson Staff FG 17… But the Z745 is the best iron I’ve ever played period. Love the Vsole and despite being forged no loss of distance!

  10. OO

    Apr 29, 2019 at 5:54 pm

    I bought the 745 to replace MP64 and while I did appreciate the 745, obviously I bought them, they were just missing a certain something.

    I continue to play the MP64 a slightly more consistent, slightly more solid club that gets through the turf better, with my swing.

  11. Brian

    Apr 28, 2019 at 2:01 am

    Are the Bridgestone J40s and Srixon Z 745’s virtually identical? I’ve been playing the J40s for years and I always just assumed the 745’s were the same irons with a different brand-name.

    • Brandon van Dell

      May 6, 2019 at 7:20 pm

      I was thinking this too after seeing these. Love my J40 CB’s!

  12. Henning Göbel

    Apr 28, 2019 at 12:25 am

    The one thing stops tje Z745 from being a classic: no availability for lefties! I am grateful,Srixon changed that with the 765.

  13. Dan

    Apr 27, 2019 at 7:45 pm

    The Z745 irons are the best irons I have ever played. I’m starting to fear replacement as mine are starting to wear. Srixon should bring out new old stock so us die hards could continue to play this iron….

  14. Frank

    Apr 27, 2019 at 7:18 pm

    Came close to buying the Z785s, but I favored the new Apex/apex Pro combo set and love them.

  15. Bob

    Apr 27, 2019 at 6:30 pm

    I have played the 545s because they are more forgiving then the 745s. I tried the 585s but they were a little clicky and didn’t feel as good as my 545s so I took them back and bought another set of 545s they are just softer and easier to hit. Best game improvement club I have ever hit. If I was better I would hit the 745s

  16. dat

    Apr 27, 2019 at 4:46 pm

    I really wanted to like these, but the sole grind didn’t fit my game.

  17. Exrog

    Apr 27, 2019 at 4:10 pm

    I have a set of z945 and z965 irons. The z945 irons are an amazing feeling set. I want to try and configure the heads to a one length set up due to back problems. Does anyone know if the 945’s are endo forging?

  18. Olson

    Apr 27, 2019 at 4:04 pm

    I originally got mine with S300 shafts, got fitted for X100, instead of getting new irons I reshafted mine, replaced the 9 iron and PW last year with the Z965. Have been to a lot of demo days and fittings since but still cant find any I like enough to replace the Z745s. If I got a set of Z785, JPX Tour or 718 CBs heavily discounted I would consider it but why spend $1000 on a new set when the ones I’ve got are still on tour and works well for me. And they’re one of the best looking CBs out there. They will stay until theres no grooves left.

  19. Rick

    Apr 27, 2019 at 3:45 pm

    Had a set, but grew out of nippon 125. Got 565 with 105 and wow.

  20. William Baltazar

    Apr 27, 2019 at 3:19 pm

    I currently play 545/745 combo, and love them!! Haven’t been able to find suitable replacements. I did just order the new 585 full set. Looking for a little more forgiveness in short irons I guess. They seem to feel very similar to my current 45s. Best irons I’ve had in many many years. My original Callaway forged X Tours come to mind when thinking about clubs that move the needle.

  21. Josh

    Apr 27, 2019 at 2:41 pm

    Man I just got fitted for/ordered a combo set of z585/785’s. Hope I’m not going to regret going on eBay and finding a set of nice 745’s…the cavity on them looks a little bigger than the z785, wonder if they are any more forgiving?

    • Josh

      Apr 27, 2019 at 2:47 pm

      I meant I hope I don’t regret not going on EBay and grabbing a set of 745’s.

  22. 2putttom

    Apr 27, 2019 at 12:38 pm

    great line of clubs all around.

  23. August

    Apr 27, 2019 at 12:37 pm

    I went from the 745s to the MP18 MB/SC about a month ago and the 745s are already back in the bag. They are by far and away the best iron I’ve ever played. I agree that the 785 is a step in the right direction but the offset increased which I’m not a fan of. Hoping to stumble across another set or two of the 745s in the next couple years as I don’t think anything will come close.

  24. Mike S Berg

    Apr 27, 2019 at 11:03 am

    Been playing golf for many years the Z585 are by far the best iron on the market..

  25. john j

    Apr 27, 2019 at 9:59 am

    Anyone know any other forged cavity backs forged by Endo?

    • joe

      Apr 28, 2019 at 8:37 am

      Callaway Apex Pro 2019, Callaway Apex MB 2018, Bridgestone J15, Bridgestone xCB (and likely everything from Bridgestone), Srixon 765, Srixon 785, Srixon Z-Forged, Titleist 680, NIKE VR Pro, and VR Pro combo, and possibly the new Tiger P7TW

      • john

        Apr 29, 2019 at 9:28 pm

        Are you sure Joe that Callaway Apex pros? Interesting.

  26. Chappy

    Apr 27, 2019 at 9:33 am

    The 745s are the best iron I’ve ever played. Lots of reasons already mentioned. Short blade length, very little offset, fantastic feel and very forgiving for a small head. But the most import reason for me is the sole. The V sole is great.

  27. BJ

    Apr 27, 2019 at 8:38 am

    785 are best irons Ive played to date. first time I ever played a Srixon iron

  28. Kent Gavel

    Apr 27, 2019 at 8:17 am

    The 745’s Simply the best all around iron I’ve ever played.
    Shot making is pure joy!
    Soft feel, easy to flight.

  29. Smellis745

    Apr 27, 2019 at 7:50 am

    Still rock the 745s and like them so much, I bought a second set that was like new just to have a spare set of heads

  30. Benny

    Apr 27, 2019 at 7:20 am

    I have played 588 cb/mb set and last year fell in love with CG1 Tours. Not the longest but not short either. I keep trying to find a replacement with a 1/2 clud longer distance and this article is making me want to get a set of 745’s. Great read and nothing wron with Cleveland, Wilson or BStone. Look at what they produce!

  31. Jesse

    Apr 27, 2019 at 7:18 am

    I still have the 745’s in my bag. Purchased in 2015. I am looking a new set but nothing I’ve hit so far match the 745’s in my opinion

  32. Joakim Pekkari

    Apr 27, 2019 at 7:05 am

    Loved my black 745’s but just recently upgraded to the Z-Forged (comboed with 785 5i and 585 4i) which is just so beautiful and surprisingly easy to hit!

  33. BS

    Apr 27, 2019 at 5:33 am

    Played j40cb originally and they were an amazing iron. Moved into 745/945 combo as were very similar design with a touch better performance through out the set. Can’t fathom changing them but j40cb is the original classic iron..

  34. Chris

    Apr 26, 2019 at 11:40 pm

    The feel of the 745 is great, but to me it’s about the look. The 765 was much too rounded, especially in the shorter irons.The 785 looks much more like the 745 than the 765, so it is an iron that should be on almost anyone’s must-try list, but at the end of the day I didn’t want to give up my 745.

  35. bonifacj

    Apr 26, 2019 at 10:22 pm

    The Srixon z745s are truly fantastic irons. Best I’ve played. Have a back up set in storage for when my gamers where out so hopefully will not have to change for a long, long time.

  36. Deron

    Apr 26, 2019 at 9:38 pm

    I love my 765s. Anyone know if they are Endo forged as well like the 745s?

    • Paul

      Apr 26, 2019 at 11:32 pm

      They are, 785 are Endo forged as well.

      • john j

        Apr 27, 2019 at 9:55 am

        Are you sure, Paul? Was curious myself if the 785’s were endo forged as well.

        • Paul

          Apr 27, 2019 at 10:48 am

          Yes, I’m sure. Confirmed with someone at Cleveland/Srixon at the PGA show that 785 and Z Forged are Endo forged.

    • conted

      Apr 27, 2019 at 5:23 pm

      I’m gaming my z745s w/ Nippon 125s. Played z765/965 last two summer and went back to the z745s. I really like the head and shaft combination.

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Forum Thread of the Day: “Tiger Woods with a new Scotty Cameron at The Open”

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Today’s Forum Thread of the Day comes from No Gimmes who was quick to spot Tiger Woods preparing for this week’s Open Championship with a new Scotty putter. Woods has also been seen warming up for this week’s event at Royal Portrush with his old faithful on the greens, but our members have been discussing the thinking behind the 15-time-major champion’s potential change, as well as the putter itself.

*Photos from Golf Central’s ‘Live From The Open’ coverage

Here are a few posts from the thread, but make sure to check out the entire discussion and have your say at the link below.

  • TheMoneyShot: “I’m really surprised he is making the switch. Let’s see if it’s in the bag come Thursday.”
  • Hedgehog: “That topline and the alignment aid and all the smooth lines, gorgeous!”
  • MuniPukeLife: “Makes sense as his trusty NP2 is super light by today’s putter standards.”

Entire Thread: “Tiger Woods with a new Scotty Cameron at The Open”

 

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Mizuno T20 wedges: Let’s get spinning

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Spin.

We’re always trying to reduce it with our driver and increase it with our wedges for maximum control, but with the rules of golf being so strict, how do actually achieve a performance gain? Simple engineering…

This is the Mizuno T20 wedge.

It’s been a few years since we have seen a T (teardrop) wedge from our friends at Mizuno, and there is good reason.

Let’ get into a quick history lesson: before the JPX900 series was introduced, Mizuno had quietly been realigning the product cycles of the MP and JPX lines. You might remember back a few years ago now before the MP18s hit the scene that there was a bit of a lull in the MP line—so much, in fact, there was even a thread here on GolfWRX asking “Is Mizuno not making MP irons anymore?”

It was a naturally curious question to a company that always had very standardized release cycles, but it was a long-term play that has paid off tremendously. We now get “T” wedges with MP irons (MP20s to be exact), and we should (from everything I know) continue to see “S” Silhouette (more rounded profile) wedges with future JPX lines.

Before we get to what’s new, how about we first talk about what will be staying the same

  • Grain Flow Forged HD – like all new Mizuno irons, the T20s are made using the same forging process to increase the density of the material in the clubhead for an improved solid feel.
  • Boron – this little element when added to the 1025e mild carbon steel used in the wedges (we’re talking trace amounts equating to 3ppm – parts per million) increases the strength of the material by 30 percent—how crazy is that for chemistry? This improves groove life and has ZERO effect on club feel.
  • Variable Width & Depth Quad Cut Grooves – Like previous T and S wedges, the T20s will have quad cut grooves that will vary in shape based on the loft of the club. Lower lofted wedges are more narrow and deeper, while higher lofted wedges are wider and more shallow since impact happens at lower speeds this increases spin consistency.
  • Same beautiful Teardrop profile from address

So what’s new?

Flow. Just like the MP20s, engineers are bringing more a more extreme CG (center of gravity) shifting philosophy, or as Mizuno explains it, increased vertical moment of inertia to the wedges. As much as you (well maybe not “you,” depending on who you are) might think “a wedge is just a wedge” and loft is the only deciding factor for spin, you couldn’t be further from the truth. By relocating the CG throughout the set and changing the sweet spot height, engineers can further alter the launch and spin precisely for each loft.

It’s about gear effect—the higher you hit above the CG the less spin the ball with have, and the closer to or lower you make impact compared to the CG the more spin you will create. Either way these are wedges, so a 50 degree, for example, is still going to spin, but it is now more controllable (think less likely to ballon or get too high on full shots). On the other side of the equation, a 60-degree wedge will allow for even MORE trajectory and spin control for the low flying quick checkers with zip.

Now about that spin.

By the Rules of Golf, you can’t make grooves sharper, you can’t increase their volume, and you can only have so much surface roughness (sorry but that old Spin Doctor wedge is HIGHLY NON-conforming). So what do you do? You change the way you think about that surface roughness…

Hydroflow Micro Grooves

Instead of traditional laser etching parallel to the grooves, Mizuno engineers took a concept from the high-performance tire world and went perpendicular to the grooves and parallel to the direction the ball moves up the face to channel moisture away. This directional tread has proven to increase spin on shots especially in conditions with moisture up to 1,200 RPM (on a 60-yard shot), that’s a very tangible number. It’s not just about spin either: the more the friction that can be created also means more control on launch angle and less of a “floating” ball flight. That’s how those low zippers keep zippin’!

Don’t think for a second that Mizuno just changed the etching and was done with it. The process went through multiple iterations to figure out how they could improve its life (beyond the boron) and the solution was to etch before the chroming process to elongate the lifespan. The other groovy take for the T20s is the actual reconfiguration of the grooves. To get the bottom groove closer to the leading edge without having it disorient the overall look of the club and making it appear that the heel or toe is thinner on one side. The lowest groove has been shortened and centered.

All of these refinements; CG, micro-grooves, and reconfigured scoring lines add up to one thing: more control and improved shotmaking with your wedges.

Finishes, specs, and grinds

The wishes of many have been answered when it comes to the T20s, there will be a RAW finish (happy dance time) along with traditional chrome and the signature blue ion. Leftys will only be able to get chrome, but all the same options will be available as far as lofts and grinds.

Coming in lofts from 46-60 degrees, the grind options progress depending on the loft and bounce. Going from full-soled in the lower lofts to more aggressive back edge, and heel-toe relief in the 60 degree. These sole shapes came directly from Mizuno’s craftsman that worked with players and prototypes to determine exactly how the bounce and sole shapes should work in harmony.

All of this has come together to create Mizuno’s finest wedge to date.

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Mizuno MP-20: Layers of feel

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“Mizuno Feel”

It is part of the golf vernacular. It’s ingrained in golf (nerd) culture—it’s a real thing.

But where does it comes from, how did it get here, and what is it really?

I’m here to give you some answers and introduce you to MP-20 family of irons from Mizuno.

Born from tradition, and the idea of creating the ultimate set of irons for every player, the MP-20 family is the next series of MP irons that will connect golfers to the “Mizuno Feel.” Speaking to tradition, and something I touched on when these were originally teased on social channels with #LayersOfFeel, Mizuno is going back in time to the TN-87s and reintroducing a copper underlay to their irons—all of them! (Before someone tries to correct me: yes, I realize that they have done this for more recent Japan market models )

What does this copper layer mean? Here’s the funny thing, even Mizuno has had a hard time trying to quantify it. Through multiple rounds of extensive blind prototype testing with all of their staff players, the irons with a copper underlay won on feel EVERY SINGLE TIME!  How’s that for dominance?

But why? They are truly still trying to 100 percent figure that out. Mizuno has used its HIT (Harmonic Impact Technology), metallurgy analysis, and every test it can to try and figure out why. Engineers even went as far as trying to prove the hypothesis the copper underlay “feel” was based on nostalgia but time and time again Cu won in blind testing. At the end day, the human element was still the deciding factor because humans are the ones that ultimately hit shots.

This brings us to the flagship MP-20 (Blade) (The Ultimate Tour Blade as described by Mizuno’s Product Manager & Engineer Chris Voshall). Evolving from the tradition built into the MP-18, and taking design cues from historic models like the TN 87 and MP14, the MP20s provide more flow throughout the set from top to bottom leading to even more control over ball flight. This flow also increases forgiveness (please remember it’s still a blade) and launch in the longer irons, with an increased ability to flight the ball in the scoring clubs… all of this AND a thinner top line.

Now about that top line: it’s an extremely important part of the look of the club but, what many don’t realize is it also plays a big role in feel and acoustics too. Let’s simplify for a moment: think of a clubhead like hunk of metal—a cube—now when you hit that thick piece of metal on something it doesn’t reverberate much and when it does, it’s at a different frequency making it sound heavy and “thuddy,” or as some would say, SOLID.

Now imagine if that same piece of metal, same mass was stretched out like a saw blade. Have you ever hit something with the side of a large saw blade? It’s wobbly, loud, and generally unpleasant, that’s what happens when an unsupported part of a club gets too thin, it acts like an amplifier of bad sound, creating terrible feel. By blending a small channel (think MP5) with the classic looks of yesteryear you get a club that feels and performs like no Mizuno before it, and as I said, with a thinner look from address.

What’s all this talk of “Flow”?

Center of gravity and mass placement (or as a Mizuno Engineer explained to me “Vertical Moment of Inertia”). Since each club is designed individually, you need the center of gravity to shift throughout the set to help control launch/trajectory (or “traj” as the kids say), and make sure spin is also at an optimal level.

For the MP-20, it means long irons that are “easier” to hit (air quotes, because like I said before, it’s still a blade), and short irons that can be more easily flighted lower with greater spin and control. Just like with the MP-18s, Mizuno is keeping with the continuous reduced blade length into the short irons for a look preferred by better players and for improved grass and turf interaction.

But What About the Rest?

You might have noticed off the top I called it the “MP-20 Family.” Here’s why: In golf, like with any other industry, data is important. But it’s only as good as you use it and well…let’s just say Mizuno has been paying close attention to how golfers and fitters have been making combo sets over the last few years. It’s all about understanding what golfers really need and thanks to some proprietary data they went even deeper when it comes to designing each and every iron in this family to make sure its performance is maximized. This is why I continue to emphasize how each set has a flow, it to make sure each club in your bag is just right for you. Now to introduce you to the rest of the family members…

Mizuno MP20 MMC (Multi-Material Construction)

I know, you think you’ve heard this story before but…NOT LIKE THIS!

The new MP-20 MMC is a BIG shift in design, not just because of the Cu underlay, but a radical change in how the whole part is put together. I know it sounds very “big biz,” but in the world of manufacturing it truly comes down to how “parts” are manufactured. Now, with Mizuno, I will reiterate a well-known story. All of its forged irons are single-sourced from one foundry (Chuo) in Japan through a handshake agreement that has been in place for decades.

Now back to the MMC. Before the MP-20 the MMC always had one tiny design difficulty (not a bad one, just a truth) and that was the titanium piece in the back was the same size throughout the whole set. This lead to a set with almost constant sole width. That doesn’t mean previous generations were constructed poorly, but it just means there were improvements that could be made to how the set flowed (there’s that word again) from top to bottom…which leads us to the tech story.

For the first time in the MMC’d life, the titanium piece of the iron will actually vary in mass depending on the club. It will be broken up in the middle of the set to allow better CG placement, and like its blade cousin, improved turf interaction in the shorter irons.

What is also very cool from a build and engineering perspective is the way the titanium gets into the club in the first place. Here we go down a metallurgy rabbit hole, buckle up…

  • Titanium has a mass density (rounded) of 4.5 g/cm3 – cubed
  • Carbon steel has a mass density of (rounded) 7.9 g/cm3 – cubed

That means that from every cubed cm of steel volume you replace with titanium in the head, you save 3.4g… which might not seem like much, but in a 4-iron for example that has an average mass of 248g for (4) cm3 you save 13.6g or just over five percent. I realize this is DEEP into the mass property weeds, but when you think of what a club head weights and how every half percentage point matters, five percent is a lot! That’s more forgiveness, more MOI, more spin control, and overall better performance.

What is also very cool is all of these parts (titanium and tungsten) have ZERO chemical bond—no epoxy. They all fit snug based on the shrinkage rates of the different materials. Ti & W( tungsten – W comes from the ore Wolframite) shrinks less than the steel so as the steel cools around the titanium and tungsten pieces it creates a mechanical (solid) bond.

All of this together adds up to an iron that looks smaller than the previous version, offers more “flow” in CG, something we mentioned earlier that creates more forgiveness and control throughout the set, and at the end of the day it means a better-engineered version than the one before it.

Truth Break for a moment…

Let me make one thing clear, new sets are AWESOME! We are, and always will be, attracted to the latest and greatest but the player should still get fit and find out what works best. New will and should inevitably be better but the cost-benefit analysis should always be at the end of the day up to the individual golfer to decide and figure out what will end up in the bag to help lower scores.

The Hot Metal Mizuno MP-20 HMB

look AT THIS!!!

YES…you read that correctly. Mizuno is bringing Hot Metal tech to the MP line!

A hollow body blade looking iron using the same strong yet highly flexible Chromoloy material as the 919 Hot Metals except this time forged to create an iron like they never have before. The look and shape of a blade the speed of a Hot Metal.

Let’s break things down.

The look is clean as clean can be, from there the face of the HMB is thin and fast, while hidden inside the back of the club is complex geometry for both acoustics and precisely positioning mass. These will be the replacement for the MMC Fli-His but unlike that set, only going to the 6-iron, the new HMB will go all the way to the pitching wedge.

What is also different for the HMB vs. the MMC Fli-Hi is the way tungsten is used in the head to create different impact dynamics. The Fli-Hi had all the tungsten (20g worth) in one place in the head (low and towards the toe). The CG was still located right in the middle but through in-depth testing some players found that the Fli-Hi was a more difficult club to turn over and draw.

To improve the workability of the new HMB, the Tungsten was split into two 12g pieces (four more grams than previous Fli-Hi) and positioned into precisely formed pockets on the heel and toe in the back of the club. This allows the unsupported face to flex and makes the club more workable while still maintaining all the forgiveness you would expect from a hollow body iron built for speed. Seriously who doesn’t like the sound of that?

Since the new HMB is a full set and not just long irons, there is more to the tech story… here is comes… better flow and CG positioning throughout the set. This is hugely important for the mid and short irons where loft is already going to create spin so controlling ball flight and traj on approach shots is vital for scoring better.

This is again where the MP-20 Family discussion comes into play. Mizuno knows they are going to sell a lot more HMB long irons vs. blade and MMC long irons, so the entire family is designed holistically for every player to find each and every head that optimizes them on the course.

The Full Package

Like with previous generations going back almost a decade, Mizuno is keeping its industry-leading matrix of shaft and grip options available at NO upcharge. BUT… based on the growing demand for more exotic options the newly expanded shaft line up will include a few shafts that will come with a slight upcharge.

Whatever you end up being fit for, it’s important to realize that there has never been family of Mizuno irons designed like this, which could also mean you could be bringing home some new family members soon.

 

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