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TaylorMade’s new M3 and M4 irons, with “RibCOR” technology

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With its new M3 and M4 irons, TaylorMade has introduced a “RibCOR” technology that’s designed to produce more speed on mishits. Before we get into what exactly that design is, let’s see why this concept is important.

COR, or coefficient of restitution, is the measure of energy transfer between two objects. For golf club manufacturers, especially when making game-improvement irons, the goal is to get COR as high as possible; this means ensuring as much energy gets transferred from the club face to the golf ball as possible during impact. Of course, the USGA sets a limit on COR of golf clubs so they can only go so far.

Many companies these days have figured out how to maximize COR on the center of the club face. Now, the game for engineers across the industry has become “how high can we make COR on shots hit off-center.” The goal obviously being to produce as much speed on off-center hits as possible, or, minimizing energy loss at impact.

TaylorMade, for its new M3 and M4 irons, has introduced RibCOR technology that uses two ribs, or beams, on the outer portions of the heel and toe as pictured below.

This provides internal support on the outer portions of the club so that the face can flex as much as possible at impact, thus retaining energy transfer from the club the golf ball. So while the center of the face may not produce more speed compared to its M1 and M2 predecessors, this design should impart more ball speed across the face. That means more forgiveness, or MOI (moment of inertia).

The RibCOR design couples with a number of familiar technologies from the company’s past including inverted cone technology, speed pockets and face slots. These are all designed for to produce higher ball speeds and more forgiveness, helping golfers who don’t hit the center of the face every time to launch the ball high and far.

As with the M1 and M2 irons they replace, the lower-numbered M3 iron has a more compact look and is designed for slightly better players, whereas the higher-numbered M4 iron is built for more distance and forgiveness, and has a larger head profile.

For more photos and discussion click here, or read below for more info on each of the offerings. Both the M3 and M4 irons will be available at retail on February 16.

Taylormade M4 irons

As the more forgiving of the two M-family offerings, TaylorMade’s M4 irons have fluted hosels, 1mm toplines, and what TaylorMade calls its “thinnest ever leading edge.” Also, along with the RibCOR technology that’s in both the M3 and M4 irons, additional mass has been placed on the toe and heel portions of the M4 irons to produce great forgiveness on off-center hits.

Overall, the M4 club heads have 24 percent higher MOI than the M2 2017 heads, according to TaylorMade, so golfers will find them to be more forgiving than their predecessors.

The M4 irons (4-LW) will come stock with either KBS Max 85 steel shafts (R and S flex), Fujikura Atmos shafts (5A, 6R, 7S), or additional custom shafts, with TM Dual Feel grips. Steel will sell for $899 per set, while graphite will sell for $999.

Taylormade M3 irons

The TaylorMade M3 irons, while housing some of the same technologies as the M4 irons, are made for those players who want a more compact shape and are looking for more trajectory control. To help achieve this look without sacrificing much by way of forgiveness, TaylorMade ha added a 15-gram tungsten weight to the soles of the M3 irons; this lowers CG in the head.

The irons have a 180-degree fluted hosel — that means it’s not as visible at address compared to the 360-degree fluted hosel in the M4 irons — to help move weight away from the heel. The irons have a thinner topline than the M1 irons they replace, according to TaylorMade, and have soles designed with more bounce for better turf interaction.

M3 sets (3-SW) come stock with either True Temper XP100 steel shafts (R300, S300), Mitsubishi’s Tensei graphite shafts (70R or 80S), or additional custom shafts, and with Lamkin UTx NC grips. M3 irons will sell for $999 with steel shafts or $1199 with graphite.

Click here for more photos and discussion on the M3 and M4 irons

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Andrew Tursky is the Editor-in-Chief of GolfWRX. He played on the Hawaii Pacific University Men's Golf team and earned a Masters degree in Communications. He also played college golf at Rutgers University, where he graduated with a Bachelor of Arts in Journalism.

5 Comments

5 Comments

  1. S

    Jan 9, 2018 at 12:26 pm

    I can see why pros are leaving TM…

    • ran

      Jan 30, 2018 at 10:11 am

      Wonder if the M3 and M4 have the same face caving issue that the M1/M2 irons have…..many people reporting face cave on irons….TM just replaces them with same iroins that eventually cave again.

  2. Tom Newsted

    Jan 3, 2018 at 10:52 am

    RIBCORE they stole that from their time with Addidas. That has been on a hockey stick for years. its a gimmick.

  3. mel

    Jan 2, 2018 at 8:32 pm

    TM M3 and M4 state-of-the-art iron designs look like winners to me, and leaving behind all those offering gel-filled hollow irons …. opps that means the P790 are obsolete now …lol … that was fast … lolol

  4. George

    Jan 2, 2018 at 12:33 pm

    i need me some ribcor

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Equipment

The drivers used by the top-10 most accurate players on the PGA Tour

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What drivers do the PGA Tour’s most accurate golfers use to find the short grass? Now that the 2017-2018 PGA Tour season is behind us, we can do a thorough examination.

First, here’s a tally of what the top 10 in driving accuracy on Tour are using by driver manufacturer.

  • Callaway: 5
  • PXG: 1
  • TaylorMade: 4

But this is GolfWRX, so of course you want to know more. Below is a breakdown of the driving-distance leaders on the PGA Tour in 2017-2018, the available specifics of their drivers, shafts and how often their tee shots found the fairway.

10. Jim Furyk

Driver: Callaway Rogue Sub Zero
Loft: 9 degrees
Shaft: Fujikura Motore Speeder VC 6.2X
Driving accuracy percentage: 69.77

9. Steve Wheatcroft

Driver: Callaway Rogue
Shaft: Project X HZRDUS T1100
Driving accuracy percentage: 69.79

8. Emiliano Grillo

Driver: Callaway GBB Epic
Loft: 9 degrees
Shaft: Aldila NV 2KXV
Driving accuracy percentage: 69.89

7. Brian Gay

Driver: TaylorMade M2
Shaft: Aldila Rogue MAX 65TX
Driving accuracy percentage: 70.92

6. Kyle Stanley

Driver: TaylorMade M1
Loft: 10.5 degrees
Shaft: Fujikura Speeder 757 Evolution
Driving accuracy percentage: 71.20

5. Brian Stuard

Driver: Callaway Rogue Sub Zero
Loft: 10.5 degrees
Shaft: Project X EvenFlow Max Carry
Driving accuracy percentage: 71.21

4. Ryan Moore

Driver: PXG ZZ
Loft: 9 degrees
Shaft: Graphite Design Tour AD IZ-6
Driving accuracy percentage: 71.94

3. Chez Reavie

Driver: TaylorMade M2 2017
Loft: 9.5 degrees
Shaft: Aldila Rogue 60TX
Driving accuracy percentage: 72.09

2. Ryan Armour

Driver: TaylorMade M1 2017
Shaft: UST Mamiya Elements Proto 6F5
Loft: 10.5 degrees
Driving accuracy percentage: 73.58

1. Henrik Stenson*

Driver: Callaway Rogue
Loft: 9 degrees
Shaft: Project X HZRDUS 6.5 62
Driving accuracy percentage: 74.79

*Stenson, as we know, tees off with his beloved 13-degree Callaway Diablo Octane Tour 3-wood with a Graffaloy Blue shaft the vast majority of the time.

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Forum Thread of the Day: “New Ping G410 Driver?”

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Today’s Forum Thread of the Day comes from hervygolf21, and it surrounds the new G410 driver from Ping that is allegedly set for release at the beginning of 2019. Our members have found out plenty of information on the latest driver from Ping since the thread began, apparently, and here’s a quick look at some of the features you might expect from the new model (if you take forum members’ word for it).

According to the thread, the PING G410 will be black with red accents, will have a higher MOI than the current G400 model, will still contain the Ping Turbulators and will be offered in 12 degrees without draw weighting. It’s also believed that the G400 Max will remain current until July/August 2019, but at a lower price point.

Here are a few posts in the thread reflecting on the news, but make sure to check out the entire thread and join the discussion at the link below.

  • lc1342: “Love both the G400 LST and G400 Max, but if they are bringing out something better… I’ll take it!”
  • cz13x4: “This sounds like a very interesting update. Not keen on red but very interested to see what comes out.”
  • roho: “Late January?  Sounds like maybe a PGA Show unveil in Orlando.”

Entire Thread: “New PING G410 Driver”

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Ben Hogan adds Ft. Worth “White” to iron lineup

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After the launch of Diamond Black Metal finish Ft. Worth “Black” irons earlier this year, Ben Hogan’s nickel-chrome Ft. Worth irons are back…sort of. The Texas-baed company today announced the launch of Ben Hogan Ft. Worth White irons.

Now with respect to the “White” designation, If you’re skeptical/confused, well, let’s just have a look at a comment on BH’s Instagram post announcing the iron launch and the company’s response…

jonmodica: “Very unclear the changes from previous model… also… white? It’s chrome…..”

Benhogangolf: ”@jonmodica More progressive specific to each club head, a more aggressive V-Sole pattern and the ‘white’ is opposite of the popular and newly designed Ft. Worth Black.”

There you have it, folks. “White” as in contrast to the Ft. Worth Black irons, and the Ft. Worth White is not merely a re-issue of original chrome Ft. Worth, according to the company.

With respect to the changes to the V-Sole system, the company said this in its marketing materials for the Ft. Worth Black.

“Feedback from strong players and robot testing indicated that the leading edge could be increased on certain irons, and trailing edge softened … especially with less-than-full shots in the shorter irons.”

“So, in our ongoing quest to design and manufacture the best clubs in golf, we’ve modified the V-Sole Technology used on the Ben Hogan Ft. Worth BLACK slightly. The sole maintains the same basic design principles as the original V-Sole but has been optimized for each iron in the set. In effect, we’ve strengthened the leading edge from the sole to the face on some of the Ft. Worth BLACK irons, while reducing the trailing edge bounce on others.”

Obviously, the company scrapped the PreciseLoft system introduced with the original Ft. Worth irons. That system offered four loft profiles, all with consistent four-degree gaps. After finding the vast majority of players preferred the “mid-high” launch profile, the company did away with the others…and returned to tradition iron number (rather than loft) stamping on the toe.

The aforementioned lofts in the 4-PW set range from 22 degrees to 46 degrees.

“The Ft. Worth White Irons are illustrative of how Ben Hogan Golf Equipment Company interacts with and listens to its customers,” said Scott White, President and CEO, Ben Hogan Golf Equipment Company. “On the heels of our sales success with the Ft. Worth Black Irons, we found many ‘traditionalists’ who wanted to play this iron design with the standard nickel-chrome finish, so we accommodated them with this launch.”

Ft. Worth White irons are available for purchase on the Ben Hogan website exclusively for $700.00 per seven-piece set (4-PW).

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