G-Designation Shafts: Who Multi-Flex Fits

Ask ten fitters what 'multi-flex' means and you'll likely get ten slightly different answers. In the Attomax Pro lineup, the G-designation models on both ATOM Black and ATOM Blue platforms are engineered to give a golfer two distinct flex characteristics inside a single shaft profile, letting swing and tempo, rather than a single static number, dictate feel.

The concept isn't a gimmick. It's a response to a real fitting problem: many golfers sit between standard flex categories, or their swing changes character under pressure late in the round. A G-shaft is built to accommodate that variability without forcing a compromise pick between, say, an S and an X.

What Multi-Flex Actually Means in Construction

A conventional shaft has a single bend profile determined by fibre layup and wall thickness from tip to butt. In the G-designation shafts, Attomax layers TORAYCA carbon fibre with UHM 65T carbon in zoned sections, so the tip section behaves closer to one flex rating while the mid and butt sections behave closer to another.

Binding those zones is a strand of amorphous metal alloy wire, whose super-elastic properties allow the transition between sections to load and release energy smoothly rather than creating a hinge point. NANOALLOY resin is used at the interface to keep the transition seamless under torsional load, so the golfer doesn't feel a 'step' between zones during the transition from backswing to downswing.

The result is a shaft that reads as, for example, an SR through the grip and upper-mid, but firms up toward an S in the tip section under load. That's a meaningfully different feel than simply splitting the difference and building a static SR from scratch. You can see the full construction breakdown on the materials and engineering explainer.

Who the G-Models Are Actually Built For

Multi-flex isn't a universal upgrade. It solves specific problems for specific swing types, and it's worth being honest about who it doesn't help.

Golfers with swing speeds that fluctuate meaningfully between a smooth practice swing and a full-effort tee shot
Players transitioning between flex categories who have historically felt 'stuck' choosing between two standard options
Golfers with a late, aggressive release who need tip stability without the harsh feedback of a pure X-flex through the whole shaft
Better players who want shot-shaping feel changes across the bag without stepping down to a heavier, stiffer shaft in every club

Conversely, golfers with highly repeatable, textbook-consistent tempo rarely need the dual-zone construction. A single, purpose-built flex from the standard ATOM shaft range will typically outperform a multi-flex build for that player, simply because there's no variability in swing to accommodate.

Reading the G-Code on the Shaft Label

Attomax G-designation shafts still carry a standard flex letter — R, SR, S, X or TX — but the G prefix signals the dual-zone layup. An 'S-G' isn't a softer or stiffer version of a standard S; it's an S-rated shaft with a secondary flex zone built into the tip to manage load transition differently than the standard S build.

This matters at fitting time because swapping from a standard flex to its G-equivalent isn't a straightforward upgrade decision. It changes how the shaft loads through impact, which can shift launch and spin numbers even at an identical static flex rating.

The G-models exist for the golfer whose swing doesn't read the same way twice — we're not building a stiffer shaft, we're building one that responds differently depending on how hard it's loaded.
— Attomax Pro Fitting Team

Fitting Considerations Before You Commit

Because the dual-zone profile changes load behavior rather than simple stiffness, torque and tip section length matter more here than on a standard build. Installers should reference the tipping notes closely, since even a half-inch adjustment can shift where the transition zone sits relative to impact.

Full torque figures, kick point data and recommended tipping ranges for every G-designation model are published on the ATOM spec sheet and flex guide, and that's the resource we'd point any club builder toward before cutting or installing a G-shaft. Getting the tip section length wrong on a dual-zone shaft has a bigger downstream effect than the same error on a single-flex build.

For golfers unsure whether their swing profile actually calls for a multi-flex build, a launch-monitor session is worth more than guesswork. The free ATOM AI swing-analysis fitting tool is a reasonable starting point, and it now factors tempo consistency, not just clubhead speed, into its shaft recommendation logic — which is precisely the variable that determines whether a G-model earns its place in the bag.

If you're still on the fence after a self-guided fitting session, booking time with an authorized fitting partner for a proper launch-monitor comparison against a standard flex is the most reliable way to confirm the gain is real and not just a subjective feel preference. Multi-flex technology is a genuine engineering solution to a real fitting gap — but like any specialized tool, its value depends entirely on whether your swing actually presents the problem it was designed to solve.