Aerotech Steelfiber I95 Review

Making the change to graphite iron shafts can be difficult for many golfers. Senior players that are used to playing steel shafted irons and wedges can be discouraged by having to completely change the feel of their entire bag. Aerotech has solved this issue with the introduction of the SteelFiber shaft. These shafts are designed with an ultra-strength steel outer layer and a lightweight graphite core. The result is a golf shaft that feels similar to steel and gives players the playing advantages of high modulus graphite. The SteelFiber golf shaft is the ideal choice for players transitioning out of steel iron and wedge shafts into lighter, easier-to-swing options. Players that struggle with arm or wrist injuries can also benefit from the vibration dampening effect of these steel-graphite hybrid shafts.

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Key Features

  • The Steel Fiber Surface Layer and Graphite Inner Core combine to produce a better feeling, higher performing iron and wedge shaft .

  • The multi-layer construction delivers more performance, more forgiveness, and more consistency.

  • The constant weight design ensures that players get a full iron and wedge set that is more balanced.


  • Aerotech SteelFiber i95
  • Shaft Flex: Extra Stiff
  • Shaft Material: Graphite

Aerotech SteelFiber Shaft Detailed Review

Design and Technology

Aerotech set out to design a golf shaft that allows golfers of any age and swing ability to play a premium, high-performance golf shaft. By combining steel and graphite into a multi-layer design, Aerotech is able to give players the familiar feel of steel shafts with more accurate and optimized weight and performance characteristics in their SteelFiber model. The constant weight feature is unique to this design as the graphite component allows engineers to build each shaft to the exact weight of each player preference. The Aerotech SteelFiber delivers golfers the best of both worlds in feel and ball flight performance with their multi-material hybrid configuration.

I play a graphite shaft in my driving iron so I assumed the SteelFiber shaft would resemble that in feel. I was surprised however at how much the SteelFiber reminded me of traditional steel shafts. Aerotech does an amazing job at delivering a shaft that is lightweight yet incredibly stable. The SteelFiber shaft was easy to launch, incredibly consistent, and I noticed a dramatic reduction in vibration at and after impact with the golf ball.

Aerotech packs the maximum amount of technology into the SteelFiber shaft. The result is a shaft that is more stable and more forgiving. The SteelFiber uses a blend of materials to meticulously control weight and thickness. I would not hesitate to recommend the SteelFiber shaft to players of any ability and swing type as they look for better feel and reduced impact stress. Players will likely be able to play more golf longer by switching into the SteelFiber from Aerotech.

Aerotech Steelfiber I95

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  • High performance graphite with the familiar feel of steel make SteelFiber a great all-around shaft.
  • The multi-layer construction delivers more performance, more forgiveness, and more consistency.
  • The constant weight design ensures that players get a full iron and wedge set that is more balanced.


  • Players cannot choice different flexes within the weight categories of the SteelFiber shaft offerings.
  • Players seeking a more rigid feeling shaft will likely need to stick to all-steel constructions in their set.
  • Aerotech SteelFiber shafts carry an additional upcharge and can make expensive iron sets more costly.
Build Quality
Control and Performance
Design and Appearance

Aerotech I95


The Aerotech SteelFiber comes in five weight and flex categories that are match in tandem. These pairs help create more consistency and give players the advantage of tighter tolerances. The SteelFiber is available in i70, i80, i99, i110, i125 parallel and constant weight tips. Each number represents that respective weight and flex increases in stiffness as the shafts get heavier.


The Aerotech SteelFiber shaft is unique in its design and performance. Players looking to gain distance, accuracy, and forgiveness may benefit from the constant weight or hybrid nature of the SteelFiber shaft. Available in light and tour-level weights, the SteelFiber can be fit to any player’s game. Golfers no longer have to choose between the traditional feel of steel shafts and the performance benefits of graphite. SteelFiber packages the best of both worlds for any golfer serious about their game.

SteelFiber Shaft Video Review


How Does the SteelFiber Shaft Compare?

Project X LZ Shaft

The Project X LZ gives players trusted Project X performance in a golf shaft that is easier to handle. Many golfers that desire tour-level control and accuracy do not like the feel of harsh iron shafts. Project X LZ is designed with Loading Zone Technology to deliver tip stiff stability in a smooth package. By reducing the bulk in the shaft’s midsection, Project X engineers give golfers their best feeling iron and wedge shaft without sacrificing the performance of their most trusted design. The LZ shaft is great for players looking for a slightly higher ball flight or who do not prefer the feel of rigid steel shafts.


UST Mamiya Recoil Shaft

The Recoil is a full graphite iron shaft option that has been validated on Tour. Designed in 14 different models, Recoil is built for any golfer looking for the maximum performance in an iron shaft. UST built recoil to be ultra-forgiving and easier to hit by creating over 60% more efficient energy transfer and improved versatility in shot trajectory. Players that prioritize performance over everything else can build their irons and wedges with a high performance, graphite shaft designed to make the game easier for everyone. Played on the PGA Tour, there is no longer a stigma surrounding graphite shafts in your irons and wedges.

  • UST Mamiya Recoil 780 ES
  • Shaft Flex: Stiff
  • Shaft Material: Graphite


N.S. Pro Modus 3 Shaft

The Modus 3 is Nippon’s latest offering in their high-performance golf shaft line. Nippon focused on created the Modus 3 tier system to fit any golfer preference and matched models to specific weight, release pattern and ball flight demands. The Modus 3 delivers more control over three key aspects of iron and wedge play; optimized trajectory, distance, and directional accuracy makes the Modus 3 one of the most trusted iron and wedge shafts in the world. Serious players looking for better performance and a better fit can get their preferred model in the expansive Modus 3 line.


Should You Buy the Aerotech SteelFiber Shaft?

Players and club builders alike agree that graphite shafts are higher performing than their steel counterparts. However, it can be difficult for players to adjust to the change of their iron and wedge shafts to a new material all-together. Aerotech has designed the SteelFiber golf shaft to be the ultimate blend of steel and graphite to give golfers maximum performance without sacrificing the feel they are accustom to. Golfers in every stage, beginner, high handicap, low handicap, and senior, can all find their ideal balance of weight, flex, and ball flights with the many models in the SteelFiber system. Players with upper extremity injuries such as elbows, shoulders, or wrists can benefit from the reduced shock and vibration created by this hybrid construction. When you go to buy your next iron or wedge set, keep the SteelFiber in mind, especially if you feel your current gamers are letting you down.

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