COBRA OPTM DS-ADAPT FW Sleeve Shaft CRAZY STF Synergy Thrust Carbon Shaft 50 60 70 Made in Japan

The CRAZY STF SYNERGY THRUST is a high-performance shaft specifically designed for fairway woods, embodying two concepts: "synergy," which integrates multiple forces, and "thrust," which powerfully propels the ball's trajectory.

Its construction caters to a wide range of golfers' needs, from a mid-to-tip flex model in the 50g range to a mid-flex, hard-spec model in the 70g range. The shaft's rigidity and torque balance have been meticulously adjusted to achieve both flexibility and excellent repulsion. The STF50 is ideal for mid-head speed players seeking a smooth swing, while the STF60/70 is perfect for competitive players who prioritize impact strength and control.

All shafts are manufactured in Japan, boasting reliable quality supported by sophisticated production techniques. They achieve both high launch and long distance while providing stable shots from the fairway. Golfers who struggle with woods or frequently mishit shots will especially experience how the club's performance assists their swing.

This is CRAZY's latest FW-specific shaft, whose perfection will surprise you after just one use.

Specifications

STF Series (Fairway Wood Specific Carbon Shaft)

・Length: 44 inches

・Tip Diameter: 8.5mm (.335)

・Made in Japan

▶ STF50《Mid-to-Tip Flex・Lightweight Model》

R (54g / Torque 3.5)

SR (54g / 3.5)

S (55g / 3.4)

SX (55g / 3.4)

Fast snap-back, high launch, and excellent ball capture.

A lightweight type that is easy to swing through.

▶ STF60《Mid Flex・Standard Model》

S (66g / 3.6)

SX (66g / 3.5)

X (67g / 3.5)

XX (68g / 3.5)

3X (68g / 3.4)

Balanced mid-flex design.

Ideal for intermediate to advanced players seeking both distance and direction.

▶ STF70《Mid Flex・For Hard Hitters》

SX (73g / 2.6)

X (74g / 2.5)

XX (74g / 2.5)

3X (75g / 2.5)

Rigidity and low torque prevent wobbling even with powerful swings.

Best match for players with fast head speeds.

🛠 Common Features of the Series

・FW-specific design for optimal balance with each club number

・High-precision quality made in Japan

・Covers weights from 50g to 70g to suit playing style and physical strength

➡ Covers all FW shots, from light and agile to heavy and powerful!

Find the best shaft for your swing here.

Points

Shaft only, not available for purchase. For re-shafting only.

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