Graphite shafts in iron sets were once widely dismissed.
However, times change. Advances in technology and design methods have led to a number of outstanding graphite shafts, specifically created for irons, entering the market in recent years.
The argument is compelling enough that, at the highest level, players are opting for graphite shafts in their golf irons. We’re talking about players such as Rickie Fowler, Matt Kuchar, and more recently, Jason Day. Don’t forget Bryson DeChambeau, and if you are a big follower of YouTube golf, George Bryan.
What drives these choices? Jason Day provides insight into the shift: he reported experiencing less physical strain and greater consistency in iron play after transitioning to graphite shafts.
The move to graphite by these players shows that shaft design now meets a standard that top players are embracing for its improved performance.
So, should you be considering graphite iron shafts in your next set?
Given these developments, it’s time to take a closer look at what could become the next big trend in golf. We’ll build your understanding by examining these areas:
- Where Iron Consistency Really Comes From
- When Mistakes Creep Into Our Understanding
- The Real Differences Between Graphite and Steel Iron Shafts
- How Modern Graphite Iron Shafts Deliver These Benefits
- Who Graphite Iron Shafts Make Sense For
- Turning Shaft Choice into On-Course Performance
Where Iron Consistency Really Comes From
In our last blog, we touched on the topic of becoming a more consistent iron player when we looked at Cobra’s new 3DP irons.
Our focus was on technology in iron heads to help make them more predictable. However, advanced multi-material construction and employing AI to make off-centre strikes perform as well as centred strikes is just one part of the equation.
Getting the right head is one part of the equation; having the right shaft fitted brings everything together. Get the right golf shaft, and it will amplify consistent ball striking; it will make the head more resilient to twisting at impact, which allows the off-centre face technologies to do their job in maintaining consistent performance. You’ll also notice improvements in shot dispersion and achieve the right launch and spin figures to make your iron shots more predictable.
More golfers are tuning into the fact that having the right shaft fitted to their driver can improve their driving and give them more confidence; however, translating that process of improvement into iron play isn’t quite there yet, which is one reason why graphite shafts are still overlooked.
When Mistakes Creep Into Our Understanding
For long enough, steel shafts have been the default option when buying golf irons. Steel shafts balance the iron out better and provide more consistent shots.
Iron play isn’t about grabbing more distance; it’s about control and feel. You can’t feel the difference between a well-struck iron shot and a poor one because graphite doesn’t offer the same levels of feedback.
Some golfers change only iron heads, keeping the same shafts due to past success. However, the new heads may not suit the shaft, causing erratic results and confusion, often leading golfers to blame the new heads for their inconsistent play.
While these concerns have some merit regarding performance, they do not tell the complete story.
Getting the balance right for an iron graphite shaft wasn’t easy. The club felt too light in the hands. Fears surrounded how robust graphite shafts are in handling ball turf interaction. It’s fine when the ball is teed up, and the graphite shaft is fitted to your driver, but could graphite really cope with thousands of iron shots where the vibrations are more prominent?
Some golfers have the idea to switch to graphite, and in particular lightweight graphite shafts, but their motives for doing so are based on chasing distance - it works for the driver, so why shouldn’t it work for irons?
The theory falls apart when the new lightweight graphite shafts send the ball ballooning into the air, shot dispersion widens instead of tightens, and as a result, the expected added distance is nowhere to be seen.
Not all graphite shafts are the same. With more options entering the marketplace, assuming one graphite shaft differs from another only in graphics is a major oversimplification, as the next section will show.
Finally, whether we like it or not, we are influenced by what the best players in the world do, and if none of them play graphite shafts in their irons, there’s no reason why amateurs should either.
The Real Differences Between Graphite and Steel Iron Shafts
How are perceptions changing? Why are the players we’ve mentioned, along with one-third of the top hundred female professionals in the world, using graphite?
Improved understanding enables graphite shafts to withstand iron play demands.
Creating highly stable graphite shafts comes down to using different densities of carbon weave and matching that to the right level of resin to fuse the carbon together.
For graphite shafts designed for irons, we see additional materials added into the construction process. Let’s use Fujikura’s Axiom shafts as an example.
Axiom shafts feature the same VeloCore technology, which has helped propel Ventus shafts and make them the most used driver shafts on the PGA Tour.
VeloCore technology utilises high-strength carbon-fibre weaves positioned at different angles to create a highly stable shaft, which resists the torquing and twisting of other shafts, and helps return a stable clubhead back to the ball.
Looking at Mitsubishi Chemical’s MMT, or Aerotech’s SteelFiber shafts, their solution is to interweave steel fibre strands into the carbon resin core to obtain higher levels of stability.
Adding steel fibre provides a closer link in feel to pure steel shafts, which, in theory, should help make the transition easier from steel to graphite, and is the shaft of choice for Rickie Fowler and Matt Kucher.
Jason Day’s irons are fitted with KBS Tour Graphite shafts, designed to mimic the feel and weight of steel but made from graphite.
An additional advantage that graphite shafts have over their steel counterparts is their weight.
True Temper’s classic Dynamic Gold S300 comes in at 130 grams, KBS’s Tour Graphite comes in at 80 grams.
The lighter weight of earlier graphite shafts raised concerns about control, but modern designs address this. Today’s graphite shafts provide both stability and control, with the additional benefit of lighter weight for increased clubhead speed.
Now, the lighter weight of graphite can be used to your advantage by helping to add extra clubhead speed. No player will ever shy away from adding a few extra yards to their shots, whether it is an 8-iron or the driver.
Trajectory control was also an issue with older graphite designs, which has now been addressed in the modern generation models. In a YouTube video, George Bryan talked about how he saw higher trajectories throughout his irons, giving him better stopping power on the greens.
He is not talking about an uncontrollable ballooning trajectory; he’s describing improved trajectories with good launch and spin numbers, giving him full control of his iron shots.
Fujikura’s approach to obtaining maximum control for trajectory, launch, and spin numbers offers different weights as well as flexes to help fit the correct shaft for the correct player.
Who Graphite Iron Shafts Make Sense For
Now that we understand modern graphite shaft construction and technology, let's consider who benefits most from using them.
To start with, we’ll take our lead from Jason Day again. Day has been besieged with back problems in recent years, which have hampered his playing time.
Fully fit now, Day is climbing back into the higher echelons of the world rankings with consistent performances on the PGA Tour.
His switch to graphite shafts will help him prolong his ability to play and practice since graphite does a better job of dampening vibrations through the shaft, taking strain off his hands, arms, and, importantly, his back.
And there lies a good reason to consider a switch. If you have suffered any form of injury or cope with a chronic condition, graphite shafts will make life a lot easier to play and practice as long as you can.
If you are injury-free, but can’t generate the same clubhead speeds as you did when you were younger, it’s a great opportunity to look at graphite shafts in your next set of irons.
Graphite can maintain or increase clubhead speed, and options that mimic steel’s feel ease the transition.
We see many players coming to us who have come back to the game after a number of years where they haven’t played, and are looking to invest in new clubs as their passion for golf is reignited.
Many of these players are building their games from memory of how they played before, but haven’t yet gotten the consistency back in their game. What they see when they are on the launch monitor is inconsistent strike patterns and often wide dispersion patterns.
Married to the right head, graphite shafts can build in some much-needed predictability to the results they see out on the course, building their confidence as they continue their journey back into the game.
On the subject of confidence, we also have players who come to us who have simply lost all confidence in their ability to hit an accurate iron shot.
These players are at a real low, and some of them have already gone down the road of investing in new off-the-shelf models in a bid to rekindle their game.
The reality doesn’t match the expectation as the new purchase is not tailored to that player’s specific needs, so they won’t see any long-term improvement.
Graphite shafts provide a bigger safety margin for these players, honing in on the correct weight, flex, and profile can have them hitting better iron shots in a short matter of time, and it’s one of the most satisfying aspects as fitters when a player leaves really excited about the fitted clubs they’re getting having come in almost ready to give up the game.
Wherever you’re coming from, if you want to explore whether graphite shafts fitted to your irons can improve your game, the best way to find out is to go through a custom-fitting process.
Through the launch monitor data and a needs assessment with the fitter, you’ll find out quickly if graphite can improve your accuracy, your ball striking consistency, and your launch and spin windows.
Where we should follow the best players in the world is by casting aside any prejudices we have towards understanding what can help our game. Pros are switching to graphite shafts because they see improvements in performance. That’s all they care about, and you should too.
If you are in the market for a new set of irons, don’t rule out graphite shafts.
If you’re exploring whether graphite iron shafts could suit your game, booking a dedicated iron fitting session with Nine By Nine Golf is the most reliable way to find out.