Golf Accessories Reviews

Mizuno JPX 900 Irons Review

In the golf world, Mizuno is known for its high-quality and performance-focused golf clubs. But with the JPX 900 series, Mizuno looks to make its iron sets more affordable and accessible for the average golfer. So in today’s article, we will deeper look at the Mizuno JPX 900 iron set and what it has to offer golfers.

In this Mizuno JPX 900 review, we will take a look at the iron set’s key features and benefits. A comparison between forged irons and cast irons will be included to help determine if the JPX 900 irons will work well for your individual game. We will also take a look at other iron sets offered by Mizuno and how they compare to the JPX 900 iron set. 

Now that you know what’s going to be covered in this review guide, let’s jump into our review of the Mizuno JPX 900 iron set!

Mizuno JPX 900 Review

Mizuno Golf Men's JPX-900 Iron Set

 out of stock
as of September 16, 2021 10:23 am


  • New chromoly4140 mist 15% stronger which creates metal toughness
  • 1 piece-cup face design
  • Softer wedges with milled grooves
  • Power frame design
  • Modules 105 stiff shaft

Key Features

With the JPX 900, Mizuno introduced some new technology and features that make these some of the most forgiving and durable irons on the market. 

Some of the key features include:

  • New Chromoly 4140M Material
  • 1 Piece Cup Face
  • Power Frame Design

Just a slight tweak in what metal is used in an iron can give the club an all-new feel and performance. In the case of the JPX 900, a change to a Chromoly 4140M alloy results in an increased strength to weight ratio. This new alloy is also used in Mizuno’s 1 Piece Cup Face, which creates a super-thin clubface with more rebound.

Changes in weighting also led to a new Power Frame Design. This style of design moves weight from behind the clubface to the outer edges of the clubhead. The result is extreme forgiveness and stability on each and every shot.

Each set of irons contains eight clubs that include 4-9 irons, a pitching wedge, and a gap wedge. Each club also comes with custom CNC milled grooves and a Modules 105 steel shaft.

Forged Irons vs Cast Irons

Despite golf irons seeming relatively identical, there is one very important difference in the way they are made. Most cavity back irons are cast from poured metal while more expensive “blade” irons are made from a single piece of metal that is hammer forged.

The main difference from a cast vs forged production process is club performance and feel. Cast irons tend to have more overall distance and forgiveness, but lack workability and have no distinct feel. Forged irons, on the other hand, have a much better feel and can shape shots very easily. The downsides are extremely low forgiveness and a slight reduction in distance.

In the case of the Mizuno JPX 900 irons, they are somewhat of a mix of both a cast and forged iron. The “shell” of the club head including the back, sole, and perimeter is made from a casting process. The actual face of each iron comes from a forged process and CNC milling. This means that the JPX 900 irons have a mix of both forgiveness and workability.

Benefits of using these irons

Apart from forgiveness and workability, there are some other benefits of using the JPX 900 irons. First, is the premium workmanship and overall club durability. So not only will the JPX 900 irons perform well, but they will continue to perform for years to come.

Another benefit is the outstanding ball speed that these irons create. Mizuno states that these irons have a 98% average retention of ball speed across the entire clubface. For golfers, this means more distance on each and every shot.

Other Irons by Mizuno

Unlike other large golf club brands, Mizuno has far fewer golf club lines. One important line of irons that Mizuno has is the updated version of the JPX 900 series called the JPX 919. These JPX 919 irons take everything there is to love in the JPX900 and tweaks them for even more performance.

Mizuno also offers fully forged blade-style irons in its MP-20 and JPX 919 Tour series. These irons are Mizuno’s top line irons and are made for professional and semi-professional players. The price range for these custom irons ranges between $1,000 and $1,300 per set.


Overall the Mizuno JPX 900 iron set does have some great positives that include:

  • Exceptional Distance
  • Great Forgiveness
  • Outstanding Durability


However, there are a few drawbacks to this set of irons including:

  • Very Expensive
  • Last Generation Of The JPX Series

Bottom Line

If you are in the market for a higher-end golf iron set, the Mizuno JPX 900 could be the perfect set for you! With its balanced mix of forgiveness, feel, and distance, it is perfect for golfers looking to improve their game.

While the JPX 900 irons are still relatively expensive at almost $800, they are still much cheaper than the newer JPX 919 series. So this set could be excellent for golfers looking to get high-end clubs at a bit of a discount. Of course, there are other iron sets that have similar performance for a much lower price from brands like Callaway, Cobra, and Taylormade.

Regardless of price, the JPX 900 irons will perform well for years to come. Plus, you will get amazing customer service from Mizuno in case any issues arise. So if you have the money to take the plunge, go ahead and upgrade to the Mizuno JPX 900 irons.

Austin is college senior at Wilkes University who in addition to studying has been playing and perfecting his golf game over the past 8 years. An advanced player he has extensive knowledge about the game and the equipment used. In addition to playing the sport he has also worked in a pro shop meaning he knows exactly what people are looking for and wanting in golf apparel and equipment. This along with his excellent writing abilities means he brings nothing but the best articles to the readers at Golf Accessories Reviews.

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