UST Mamiya Quantum Shaft Review

In recent years, there has been a heavy focus on golf shafts having more stability without sacrificing feel. This can be a complicated task. Especially in lighter weight profiles, but the evolution of exotic materials has really expanded the possibilities for shaft companies. The new UST Mamiya Quantum shaft offers golfers an ultralight platform with precise response and strong stability. UST Mamiya achieved this through the use of a high modulus 40T carbon fiber and “toughened resin systems”. To top it off, they also gave the Quantum a slick metallic purple and chrome finish that really pops! Quantum shafts are available exclusively through UST Mamiya TSPX fitters.

The Looks

As mentioned in the intro, the UST Mamiya Quantum has a really nice finish. There’s roughly a foot (depending on how long you cut the shaft) of metallic purple between the grip and mid section. Then the rest of the shaft has a polished chrome finish. This combination really pops in the sun. The mid section features a yellow and white Quantum graphic and the shaft specs in small black print.

Speaking of shaft specs, they’re sort of in “secret UST code”. Flexes range from 4F1 through 4F5, with F5 standing for extra stiff and F1 standing for light flex. There’s also a spec of “L3 Launch”. UST Mamiya optimizes the Quantum’s launch in relation to the weight and flex of the shaft. Generally, each flex should have a mid-high launch, so not sure if that “L3 Launch” spec indicator would change with each flex.

How Does it Feel?

A 52g shaft will typically be too light for me and result in very noticeable control issues as well as inconsistent, non-repeatable swings. I may be able to pick up on some of the benefits of the design, but there are generally too many things lacking for me to have much success. Stability tends to be the biggest factor. Much to my surprise and delight, the UST Mamiya Quantum did a pretty good job addressing that stability issue of a lighter profile for me. I still had to control my swing tempo a bit to avoid a big pull from over-swinging the lighter shaft, but I didn’t feel like I had to “steer” the ball like I normally would in a lightweight shaft.

Let me be clear, the UST Mamiya Quantum does not feel boardy and stout. I found the handle section to have a little more rigidity making the shaft more controllable. The rest of the shaft had a little more life to it with a snappy kick point in the mid section. I think how much you feel that “snap” will depend on your particular swing. A more moderate tempo may find the kickpoint to be more gradual. As far as response, the Quantum was very clean and precise.

On-Course Performance

Club Speed	Ball Speed	Launch Angle	Spin	Carry (Yds)	Total (Yds)
114.3	171.5	14.2º	2403	286.3	293.4

I’m not entirely sure what I expected from a performance perspective, but I got along with the UST Mamiya Quantum pretty well right out of the gate. I could have mentioned this in the Feel section, but I found the Quantum to feel and perform like a combination of two UST Mamiya shafts. It was somewhere in the vicinity of the Helium Nanocore meeting the LIN-Q Purple to me. I suppose that would only make sense to you if you’ve hit both… If you’ve hit those shafts, imagine the lightweight performance benefits of the Helium with the silky smoothness and ease of play in the LIN-Q Purple. THEN, just add in better control from the increased stability. I suppose you could look to UST’s LIN-Q M40X lineup for that stability DNA.

My other performance takeaway was how easy I found the Quantum to launch. This jumped out at me pretty immediately. It’s designed to be a mid-high launch shaft and I felt like I was comfortably living in the 14º range. If I got a little too aggressive with my swing, I could slipe into the 15º range and see my spin rate increase a bit. A little more moderate tempo, however, got the ball easily carrying, holding its line, and staying in the air with consistency. There was just something about it that felt easy to hit.

Final Thoughts – UST Mamiya Quantum Shaft Review

In my opinion, the UST Mamiya Quantum is by far the best lightweight option in the brand’s lineup. I found the Quantum to be easy to hit consistently well. The feel, control, and performance were genuinely impressive. That combination of stability, control, and consistency should give players that are fit for this shaft more confidence off of the tee box. Ideally, you’ll impress your playing partners with how well you’re hitting the ball off of the tee and not just with the Quantum’s good looks.