Srixon’s ZXi RKT Woods: Three Drivers, One New Face, and a Lot to Dial In

Srixon didn’t just refresh its driver this time — it went back to the face and started there. The new ZXi RKT woods are built around what Srixon calls the RKT Face, and the line they lead with is “Raw Power, Pure Sound.” That second half is an unusual thing to advertise on a driver, and it turns out to be a real engineering thread: this head was tuned for what it sounds like at impact, not just how fast the ball leaves it. The family runs three drivers deep, with matching fairway woods and hybrids underneath.

Start with those three drivers, because choosing the wrong one is the easiest mistake to make here. The ZXi RKT LS is the low-spin model — a deeper face, sole weights front and back for tuning spin, and a mid launch aimed at faster swings that want the ball coming off flat and staying under the wind. The standard ZXi RKT is the all-rounder: quick off the face and stable on a miss, without spin climbing on you. Its weights live in the heel and toe, so the headline adjustment there is shot shape — Srixon lists spin among what that chassis tunes as well, but the LS is the head built to chase it. The ZXi RKT MAX is the forgiveness play — the highest-MOI driver Srixon says it has built — with a single heavy weight parked low and back for a higher launch and more stability when you catch one off the middle. Roughly: LS for speed, RKT for balance, MAX for help.

So what is the RKT Face, actually? Srixon describes it as a stack of technologies rather than one trick. There’s a new titanium alloy with silicon in the mix, which frees up how much the face and body can flex together; an internal structure called i-FLEX that reinforces the back of the face so it can be made thinner; and a Rebound Frame that gives the head two flex zones instead of one. A reworked roll pattern is built to hold accuracy on misses anywhere on the face, with the high toe singled out — and on the fairways and hybrids, Srixon says it takes the hook out of that strike too. The sound work runs alongside all of it: inside the new AcoustiCore chassis, Srixon shaped the internal ribbing with AI and simulation until it sat where they wanted it, then paired that with a light carbon crown — the goal being a driver that cracks rather than rings. The shapes changed as well, with two years of tour prototype testing reworking face depth, crown height, and the look at address.

The adjustability is where this line gets genuinely interesting, and it’s different on every model. On the LS, moving mass forward or back is worth as much as 350 rpm of spin. On the standard RKT, going heavier in the heel or the toe can swing the ball up to about fifteen yards side to side depending on the configuration. The MAX keeps it deliberately simple with one rear weight, and Srixon’s own note is that moving it shifts MOI and swing weight rather than shot shape — so you’re dialing in feel and forgiveness, not trying to work the ball. Every head also carries an adjustable hosel with twelve positions — a degree and a half of loft either direction, plus face and lie angle — and there’s a weight kit running from 2 all the way to 16 grams. The woods and hybrids get something the line hasn’t had before: the sole weight and the hosel sleeve are meant to be tuned against each other rather than one at a time, so how high it flies, how the head feels, and where your yardages fall all get settled in the same sitting.

Here’s the catch with a lineup this adjustable. All of it only pays off if the head, the loft, the shaft, and the weight setup actually match your swing — and Srixon says as much in the same manual, pointing owners toward a club fitter to settle how high the ball flies, how much it spins, and which way it curves. Three drivers that differ mostly in where the weight sits and how high they launch is a fitting question, not a guess-at-the-counter question. That’s exactly what our aboutGolf launch monitor at Under Par is for: read your real numbers first, then let the head, the loft, and the weight setup follow the data instead of the box — no waiting on the weather to find out, right here in Muskegon.