The SteelFiber i-series was born from the voices of PGA and LPGA players, pursuing the performance and comfort always demanded in the world of golf.
Its unique performance comes from the fusion of graphite and steel.
The design freedom and distance performance of graphite, combined with the stability of steel, allow 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 in the American PGA & LPGA, has become part of True Temper Sports, adding a new brand that offers optimal shafts to a wide range of golfers.
The SteelFiber i-series offers a new "third option" for golf enthusiasts, following Dynamic Gold and Project X.
"Iron combo sets" simply refer to a setup where different iron models are combined within a single set.
While it used to be common to "match all irons from 5-iron to PW with the same model," in recent years, among tour pros, a differentiation has become mainstream:
"Long to mid-irons should be forgiving, and short irons should prioritize workability."
1. Why are "combo sets" becoming popular?
There are two main reasons:
"Evolution of ball performance" and "Changes in green conditions."
Increased difficulty of long irons
Modern golf balls have evolved to reduce spin to enhance distance performance.
As a result, with conventional muscle-back (01 series) long irons, even professional head speeds struggle to get the ball up, and there are increasing cases where insufficient spin makes it difficult to stop the ball on the green.
Role change from "hitting for distance" to "stopping the ball"
For pros, long irons (4-5 iron) are not merely clubs for gaining distance.
They are clubs for targeting the pin with a high trajectory and stopping the ball firmly on the green.
Therefore, there's a growing trend to combine highly forgiving models for long to mid-irons, featuring designs with thicker soles or hollow structures.
2. If you're building with PRGR? Recommended Combos
PRGR's 01-02 series lineup is actually very easy to build combo setups with.
Classic Athlete Combo: 01 × 02
・4-6 Iron: 02 IRON (easy to hit for high trajectory and distance)
・7-Iron to PW: 01 IRON (prioritizing workability and feel)
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 the difference in feel is minimal, allowing for a seamless combo setup.
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