The SteelFiber i-series was born from the voices of PGA & LPGA players, pursuing the performance and comfort always demanded in the world of golf.
Its distinguishing feature lies in the unique performance achieved by fusing graphite and steel.
The design freedom and distance performance of graphite, combined with the stability of steel, allows players to experience a more stable swing and increased distance.
SteelFiber is incredibly thin,
with approximately 94km of fiber wrapped around a single shaft.
Furthermore, AEROTECH's involvement has further enhanced its quality and reliability.
AEROTECH, which boasts a high usage rate on the American PGA & LPGA tours,
has become a part of True Temper Sports,
adding a new brand to offer optimal shafts to a wide range of golfers.
The SteelFiber i-series provides golf enthusiasts with a new option,
serving as a "third choice" alongside Dynamic Gold and Project X.
An "iron combo set" simply refers to a setup where different iron models are combined within a single set.
In the past, it was common to have "the same model from 5-iron to PW," but in recent years, even among tour pros,
"easier long to mid irons, and short irons focused on workability"
has become the mainstream approach.
1. Why are "combo sets" gaining popularity?
There are two main reasons:
"Evolution of ball performance" and "Changes in green environments."
Increased difficulty of long irons
Modern golf balls have evolved to suppress spin to improve distance performance.
As a result, with conventional muscle-back (01 series) long irons, even with a pro's head speed, it's becoming harder for the ball to get airborne, and the lack of spin often makes it difficult to stop on the green.
Role shift from "hitting far" to "stopping"
For pros, long irons (4-5 iron) are not just about gaining distance.
They are clubs for aiming at the pin with a high trajectory and stopping the ball firmly on the green.
Therefore, for long to mid irons,
there's an increasing trend to combine forgiving models with thicker sole designs or hollow constructions.
2. What if you combine with PRGR? Recommended Combos
PRGR's 01-02 series is actually a very easy lineup to create combo settings with.
Classic Athlete Combo: 01 × 02
・4-6 Iron: 02 IRON (easy to hit high and far)
・7 Iron-PW: 01 IRON (focus on workability and feel)
Key Points
Since the 7-iron of the 01 (32° loft) is combined with the 6-iron of the 02 (28°),
the loft progression is natural, and a combo setting with minimal difference in feel and no discomfort is possible.
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