autoFlex — Flex Line · Accessible

autoFlex Flex One

Our softest shaft. One simple choice.

Curious about autoFlex, but unsure where to begin with the specifications? Flex One brings you our softest shaft in a single 39-gram driver specification. It simplifies the choice so you can focus on the feeling of a soft swing. Recommended driver head speed is 90 mph or below.

Full specifications ↓

Line

Driver · Putter

Driver specs

Flex One · 1 specs · up to 90 mph

Made in

100% Made in Korea · no OEM

Design

Korean-art edition colorway

The Story

Our softest shaft

The softest flex is at the heart of Flex One. Light weight and a flexible response make it a choice for golfers drawn to a smooth flow through the swing.

A 39-gram shaft

A flexible feel in a 39-gram driver shaft. Flex One focuses on the rhythm of golfers who prefer lightness and softness.

A distinct visual identity

Bold colour and pattern give Flex One its own character. Choose an easy swing feel with a look that stands out in your bag.

Specifications

CPM is listed as a factual figure. Fitting is guided by swing speed and tempo, never by CPM comparison.

Start with the recommended head speed, then compare total club weight, feel and ball flight with your chosen head. Your tempo and transition also help guide the fitting.

Use the head-speed range as a starting point, then confirm your choice through fitting and swing tempo.

Driver — 45" · Single spec

Spec	Weight (g)	CPM	Your head speed (mph)
Flex One	39	165	up to 90

Putter — 34" · 36"

One autoFlex putter shaft, available in Original and Flex One designs. Both designs share the same specifications.

Length	Weight	Tip	Butt
34"	approx. 110 g	9.45mm (0.370")	15.4mm (0.606")
36"	approx. 110 g	9.45mm (0.370")	15.65mm (0.616")

34"approx. 110 g

Tip

9.45mm (0.370")

Butt

15.4mm (0.606")

36"approx. 110 g

Tip

9.45mm (0.370")

Butt

15.65mm (0.616")

Tip measured 0.25" from the tip end; butt measured 1" from the butt end.

Choose your design — Original pink / Flex One Korean cloud pattern

Steel's weight, carbon's softness — a 110g balance that strokes like steel, with carbon's vibration damping for a softer touch
Unwavering roll — twist control at impact keeps the face from opening or closing, so the ball starts on your line
If you already play autoFlex, finish the bag with the same feel

Compatibility — check before you buy

Due to its carbon construction, this shaft fits hosel-insert putters only (plumber neck · slant neck, 0.370"/9.45mm hosel bore). It cannot be installed on over-hosel or bent-neck putters. Hosel bores vary by head maker and model year — have a fitting shop confirm 0.370" compatibility before purchase. Forced installation can crack the carbon.

A simple choice. A distinct character.

One driver specification and a colourful identity. Flex One makes the introduction to autoFlex simpler while keeping the pleasure of choosing a club that feels your own.