Fast, forged, and forgiving in 2024? Srixon ZX4 iron Review
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What we say...
Srixon’s ZX4 irons mark a “new revolution in forgiveness” for the golf brand with artificial intelligence used to develop unique and fastest face pattern.
The ZX4 irons bring forgiveness to the Srixon 2021 golf iron line-up while maintaining the brand’s signature look and forged feel.
TESTED: Srixon ZX5 and ZX7 drivers
Hollow from short to long iron, the ZX4 irons are designed to produce a straight and high launch right across the face. Premium, high-density tungsten in the base of the long and mid irons lowers their centres of gravity significantly, producing a high-launch profile.
A forged HT1770 Steel face is strong and light, increasing face-flex at impact for enhanced speed and distance. And a 431 Steel body absorbs vibrations for softer feel.
TESTED: Most Forgiving Irons
ZX4 also feature Srixon’s new MainFrame technology, a one-of-a-kind face design that increases ball speed on every shot. Milled into the backside of each ZX4 face, MainFrame is a variable thickness pattern made up of grooves, channels, and cavities.
This pattern maximizes COR (energy transfer between face and ball) for more ball speed and enhanced distance.
The engineering team used artificial intelligence and machine learning to develop the unique face pattern, with computers running thousands of simulations before settling on the fastest design.
The unique Tour V.T. Sole gives ZX4 smoother turf interaction and improved feel. The V-shaped sole is designed to glide smoothly through turf, even if you strike slightly behind the ball.
REVIEW: Srixon Z-Star 2021 golf ball
Like all ZX irons, ZX4 also feature the resurgence of Srixon’s popular sole notches. Revered by professional tour players, these heel and toe notches enhance iron workability without sacrificing forgiveness.
Key technology in the Srixon ZX4 irons
MainFrame
A variable thickness pattern made up of grooves, channels, and cavities. This pattern maximizes COR for more ball speed and enhanced distance.
Hollow Construction
Hollow in every loft, ZX4 is designed to deliver higher shots that launch straight and stay on target.
TESTED: Does your game suit strong loft irons?
WATCH: Best 2022 Mid-Handicap Iron video
Tour V.T. Sole
Smoother turf interaction and improved impact feel help the V-shaped sole glides smoothly through turf.
Tungsten Weighting
High-density tungsten in the base of ZX4’s long and mid irons lowers their centers of gravity significantly to deliver high, easy launches.
Face Forged
A forged HT1770 Steel face is strong and light, increasing face-flex at impact for enhanced speed and Srixon’s signature iron feel.
Progressive Grooves
The 4-iron to 7-iron feature wider grooves, ideal for longer shots in all conditions, while the 8-iron to Pitching Wedge have deeper, closer set grooves, perfect for cutting through vrass and debris on appraoch shots.
RELATED: Which Srixon iron is right for me?
Which Srixon ZX iron should I play?
ZX4 – Forgiving, Soft and Hollow
Hollow irons offer a sleek, narrow look along with the forgiveness you’d typically only expect from larger designs.
ZX4 Irons deliver an exceptionally good address profile while also boasting our most powerful forgiveness to date.
It’s a game-changing combination that makes Srixon irons accessible to a whole new class of players that prefers game improvement equipment.
ZX5 – Fast, Soft and Powerful
ZX5 combines pioneering ball speed technology with premium forged feel, and delivers all of it in a forgiving yet workable chassis that’s razor sharp at address.
Balanced and thoughtful, these irons are the best of all worlds. If you’re after irons with forgiveness where it counts, control when you need it, soft forged feel, and explosive distance, then ZX5 is your ultimate set.
RELATED: Full Srixon ZX5 irons review
ZX7 Compact, Soft and Workable
A players iron that looks and feels like a blade while offering more speed and total control —ZX7 delivers it all.
A compact blade shape, narrow topline, single-piece forging, and narrow sole provide the workability, feel, and aesthetics of a world-class players iron.
RELATED: Full Srixon ZX7 irons review
Srixon ZX4 irons specs
What Srixon say about the ZX4 irons
“The new Srixon ZX4 irons mark a new revolution in forgiveness for Srixon,” says Joe Miller, Product Manager at Srixon Sports Europe.
“The irons include a fully hollow construction with wide soles for getting the centre of gravity extremely low and providing maximum forgiveness from the turf.
“The ZX4 irons accomplish this in addition to MainFrame technology, Tour V.T. Soles, tungsten weighting, and the look and feel expected with Srixon ZX irons.”
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Verdict: Srixon ZX4 irons
Srixon have made great irons for some time, but last year was the first time everything came together as a convincing and cohesive story. Hence why the ZX4 ranked among our best Mid-Handicap Irons in 2023 (the ZX7 and ZX5 were also top performers in the Players’ and Players’ Distance Iron categories). Things haven’t really changed too much for 2024, even though I completely appreciate many golfers will be swayed by the newer models to hit the market this year.
In the Mid-Handicap Iron category I love the ZX4 for its simple elegance and straight-line beauty, it has a look that lots of golfers will appreciate sat behind the ball at address. Each head is not overly offset and the topline thicknesses across the whole ZX family are closely linked, which will encourage golfers to create their very own personal combo set of two or more models.
Throw in all that good cosmetic stuff, with the model being one of test pro’s favorite models, plus an above-average performance for ball speed and carry distance and you’ve got a very powerful and desirable iron choice, even though most of the hottest competition is a year younger.
READ NEXT: Which Srixon golf ball suits me?
Product Information
Srixon ZX4 iron
RRP: £899 (steel, 5i-PW), £999 (g, 5i-PW)
Availability: 4-iron-LW
Stock shaft: Nippon N.S. Pro 950GH Neo (s), Diamana OEM (g)
Stock grip: Golf Pride Tour Velvet 360
7-iron loft: 28.5°
Forgiveness category: 3.5 (Mid-Handicap / Game Improver Iron)
Other irons to consider: Ping G425, TaylorMade SIM2 Max, Callaway Apex DCB.
