Super / Alloy/ Titanium
20% Vanadium / 4% Aluminium / 1% Sn - A Nippon steel product developed over five years as a lightweight, high strength material for the automotive industry and used for complex cycle parts – requiring intricate design and ability to withstand strong forces. The new ST-Z and ST-X further deploy Mizuno’s new Forged SAT2041 Beta Ti face and complex carbon construction to deliver both potent ball speeds and a dense, satisfying sensation at impact.
Resilient Forged SAT2401 Beta Ti Face
With 17% more tensile strength and 8% more flexibility than traditional 6-4Ti, SAT2041 has a fine grain structure inherently resistant to fatigue. As a high strength Beta Ti, SAT2041 maintains its characteristics and resists micro fractures for longer than the commonly used 6-4, Alpha Beta Ti.
For High- Draw Bias
The ST-X driver features a draw-biased carbon composite construction. The expanded toe located carbon composite window, and heel located sole weight combine to produce a reliable draw bias.
With engineers spending a year to fitness the sound, the ST-X driver produces a more muted, powerful tone
The ST-X offers more dense feedback through impact and a more muted, powerful tone. Those with mid-lower swing speeds will benefit from the J-Spec, Japan Specification, incorporating an incredibly lightweight 39g MFUSION graphite shaft.