50 Words or Less
The Newton Gravity Duke putter is a mid mallet flow neck style flatstick that provides rhythmic tempo using its unique lightweight ULBP shaft.
Introduction
Newton Gravity, formerly known as Sacks Parente, has rebranded itself to release an entirely new line of putters in 2024. Newton has already gained traction with its wood shaft offerings and PGA Tour Champions presence but looks to build upon that with five new putter heads including the Newton Gravity Duke putter. These putters are all proudly made here in the USA, and we got a chance to test a few of the new styles ourselves.
Looks
The first thing you will notice about the Newton Gravity Duke putter is the all matte black putter head. It is only broken up by some red paint filled logos and the alignment line that bisects the flange of the putter. The face has a shallow milling pattern that spans the length of the head with two round weight ports on both the heel and toe.
At address, the Newton Gravity Duke putter’s flow neck offsets the shaft ahead of the face while the sharp top line allows easy alignment to the ball. The body of the clubhead has a rounded D shape that is slightly asymmetrical with the toe being wider than the heel section.
For a bolder shape, check out the Newton Gravity Drac HERE
Sound & Feel
When I first picked up the Newton Gravity Duke putter, it felt very light because of Newton’s unique light weight Tempo shaft (~40 grams). When I set it down to address the ball, the heavy head (~380 grams) took some getting used to but as I started to hit some putts, it was easy to feel a smooth tempo. The weighting made it easy to feel the head through the stroke.
The proprietary Tempo shaft influenced feedback more than I would have predicted. It was easy to know when I hit a putt pure and when I missed it. Well struck putts were soft and had a muted feel through the oversized grip, while poor strikes felt harder with more vibration in the hands.
At impact, each strike sounded like a high pitched “knock.” The sound was moderate in volume but a touch louder than I expected considering the feel. There was some variety in sound depending on face impact location which is typical for a milled face putter.
Check out the Newton Gravity Deuce putter HERE
Performance
The main idea behind the Newton Gravity putters is their Ultra Low Balance Point, fueled by the lightweight Tempo shaft. I noticed the weight distribution the moment I picked up the putter for the first time. At first, I was not a fan. However, once I rolled this on the green, I was impressed with how naturally the tempo came. The ULBP technology helped produce a rhythmic stroke that I think could be a game changer for so many amateur players. At one point, I went back to my current putter and realized it helped my tempo. If nothing else, the Newton Gravity Duke putter could be a training aid for tempo.
As far as performance on the course, the Newton Gravity Duke putter shined when it came to distance control. While I wanted to attribute most of this consistency to the Tempo shaft, the change in the center of gravity also likely played a role. Newton designers shifted this COG higher and more forward with the notion that you can get away with thin putts but high face contact has a larger margin for error. Either way, as someone who has personally struggled with distance control, this putter intrigued me.
If you take a peak at Newton Gravity’s website, you’ll notice the Duke is one of the more traditional head shapes that is offered. This one in particular is named after PGA Tour Champions member Ken Duke who helped design the putter and still uses it on tour.
Even if this tour inspired mid-mallet shape isn’t your style, there are several other options to choose from, most notably three center shafted putters and one Anser style putter. No matter which you choose, all come the patented lightweight Tempo shaft.
Now available to order on their website, the Newton Gravity Duke putter is priced at $450. The Duke is only offered in a flow neck, but can be purchased in 32 to 36 inch lengths with one of three stock grip options. Although they aren’t yet offered to try out everywhere, they are available to test at all Club Champion locations.
Conclusion
The Newton Gravity The Duke putter offers something quite different to players. The unique light weight shaft and heavy head instill better tempo into the putting stroke. Combined with a milled carbon steel face, this is going to promote bette, more consistent distance control for anyone who is looking for better putting in 2025.
Visit Newton Golf HERE
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