Autoflex Driver Shaft: Mysterious Distance and Feel, Explained

The Autoflex driver shaft took the golf world by storm when it first appeared on major tours — wrapped in bold pink and backed by bold claims: more distance, less effort, and enhanced consistency for a wide range of swing speeds. Developed by Dumina, a South Korean company, the Autoflex uses proprietary KHT (Korea Hidden Technology) that adapts dynamically to different tempos and swing speeds.

One of the most popular models is the Autoflex SF505, known for its ultra-lightweight design, smooth feel, and ability to add ball speed without requiring more effort. It’s a shaft that splits opinions, but when it works — it really works.

FAQ

  • Why are Autoflex shafts so good?

    Autoflex shafts are built to maximize energy transfer with less physical effort. Thanks to their unique flexibility and Korean Hidden Technology, they deliver surprising speed and consistency, especially for moderate swing tempos.

  • Where is the Autoflex shaft made?

    Autoflex shafts are made in South Korea by Dumina Co., the company that developed the proprietary KHT tech.

  • Do any pros use Autoflex?

    Yes. Tour pros such as Adam Scott, Louis Oosthuizen, Branden Grace, and Ernie Els have all tested or played the Autoflex on tour. While not as common as other shafts, it has its loyal followers.

  • What is the swing speed range for Autoflex SF505?

    The Autoflex SF505 is recommended for swing speeds between 85–105 mph, depending on your tempo and load.

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