Mizuno JPX 900 Forged Irons Review

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It’s no secret that Mizuno has always had an immense amount of success with their line of irons and their players irons are frequently ranked amongst the best in their class throughout the world of golf. So it should come as no surprise that Mizuno’s new JPX 900 forged irons have sent a buzz throughout everybody’s foursome. But before you dismiss the hype, we urge you to check out the following product testing where we showcase that the new JPX 900 forged irons certainly live up to the high standards of Mizuno and their critics.

Before we get started, it’s important to understand that the 900’s are an upgrade from the 850’s, which are the previous model in the JPX family. Mizuno continued to mix a small amount of boron in their steel heads, which increases feel and distance by creating a thinner face, which leads to higher ball speeds and more forgiveness. Another improvement on the JPX 900 forged is the improved back cavity, which gives the irons much more forgiveness. And while all of this sounds great on paper, we can assure you that the proof is in the pudding.


The Test

To test the new Mizuno JPX 900 forged irons, we compared them to their predecessor, the JPX 850 forged irons, and both with a standard length Dynamic Gold S300 shaft.

Both of these irons are very similar, the 900 series added minor improvements, but there were some noticeable differences.

Here are the results from the JPX 900:

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Here are the results from the JPX 850:

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After reviewing the results and numbers we came up with, what stood out to us was the higher ball speed produced by the JPX 900 forged. Even with a slightly slower average swing speed, the JPX 900 forged produced 1 mph more ball speed, which led to about 3 more yards of distance.

Both irons were very forgiving and had a tight dispersion for a player’s club, but the JPX 900 forged had more shots closer to the centerline, showing that pure strikes stay very true and are extremely accurate, which is important for any player.


Needless to say, the new JPX 900 forged series are seriously impressive. They are the perfect club for lower handicap players who want total control over their approach shots. Mid-handicappers can also benefit from the new technology in these irons that add more ball speed and extreme forgiveness on mishits.

Stop by a Golf Exchange nearest you to try out the impressive new JPX 900 forged irons from Mizuno and experience their hype in firsthand. You won’t be disappointed.

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