Martin Hopley

Mizuno first introduced Boron Steel into their irons with the JPX850 Forged and I have been telling anyone who would listen that these were one of the standout irons over the last two years.

Mizuno JPX900 Forged Irons

Now their time has come and the replacement Mizuno JPX900 Forged continues to use the stronger Grain Flowed 1025 Boron Steel to deliver faster ball speeds from a forged head.

Mizuno JPX900 Forged Irons

The real difference is in the face which now uses a variable face thickness instead of a consistent one and this saves 21.5g of weight.

Mizuno JPX900 Forged Irons

This weight is then placed around the edges of the PowerFrame chassis to increase the MOI and make the club more resistant to twisting and more forgiving on off centre hits.

Mizuno JPX900 Forged Irons

You can see this in the back of the head where the bottom of the chassis is more U-shaped in the JPX900 than the V-shaped JPX850.

Mizuno JPX900 Forged Irons

Like before the cavity in the back gets smaller as you go down the set until it is completely closed in the wedge.

Mizuno JPX900 Forged Irons

Aside from the matt finish to the head there are very few other differences and that is a good thing because the previous model was pretty much perfect. The JPX900 is a perfect blend of feel, forgiveness and style that will appeal to single figure players who play blades, right up to mid-handicappers who prefer a forged iron.

Mizuno JPX900 Forged Irons

If you were being really picky you might find the 4-iron gives a slightly more hollow sound due to the larger cavity, but it still performs very well. For others it may be worth considering swapping in the JPX900 Hot Metal 4-iron for that extra forgiveness and higher launch angle.

Mizuno JPX900 Forged Irons

At address the generous mid-sized heads give lots of confidence and the slightly more compact heads in the 8-iron to 50° GW give the JPX900 Forged round out the better player look.

Mizuno JPX900 Forged Irons

The sole features a cambered grind with a bevelled leading and trailing edge that skips through the turf very easily and plays a little thinner than it looks.

Mizuno JPX900 Forged Irons

The flight is medium to high with a good level of penetration and decent spin on landing which all better players will approve of.

There is a choice of shafts through the Mizuno Swing DNA fitting service and the stock shaft is the True Temper Project X LZ in steel or graphite that is light at 115g and performs very well indeed.

Mizuno JPX900 Forged Irons

To me this is the style of head that makes the best use of the stronger Boron Steel in Mizuno's range and going forward will still be one of the irons to beat in the market.

The combination of looks, forgiveness and feel mean that former blade players, or any MP players who are feeling they need a helping hand, can move up to the JPX900 and get everthing they want in a single club.

Golfalot Rating: 5 stars
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Mizuno JPX900 Forged Iron

Mizuno JPX900 Forged Irons - Product Details

UK Launch05 September 2016
UK Launch RRP£960
USA Launch05 September 2016
Handicap Range
GolferMens, Women
Hand AvailabilityLeft, Right
Swing WeightD2
Shaft NameTrue Temper Project X LZ
Shaft TypesSteel, Graphite
Shaft FlexRegular, Stiff
DesignCavity Back
Set Makeup4, 5, 6, 7, 8, 9, PW, GW
Manufacturer's WebsiteMizuno Website

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User Reviews

Lefty lo cap
May 2018

I've got 4-GW with X100 shafts - these irons feel good, look great and timeless. These are higher flying irons but with controlled spin. Very accurate if you get fit and frame the ball excellently. Very happy with the purchase are in the bag for years to come

July 2017

As my MP 52's which I have had from new are aging I thought I would look at new Mizuno irons. After all the reports I tested MP 5's, MP25's,JPX 900 (all 3 variants). None matched my MP 52's, which was really disappointing. The distance and accuracy was better with my present clubs which admittedly were custom fitted. So I just had them re. gripped and kept a large wad of cash in my pocket.

Ryan Roark
May 2017

I really love the feel and the look of my JPX 900 Forged but very disipointed on the finish of them you can see the scuff marks from where I strike the ball. Just purchased these irons about 3 weeks ago. Other then scuffing easy they are truly great irons.

May 2017

Got fit here in vegas by a certified fitter. Compared the JPX900 Hot Metal to Ping G30, Ping i200 and Ping G irons as well ast the the lastest M2 irons by TaylorMade and the Callaway Steelhead all with the same flex in graphite shafts. After two days of testing the Mizino was most consistent with the best fight patterns and distance distance.

February 2017

Great looking set of clubs, fitting process extremely comprehensive. Ended up with JPX900 forged, 4 to pw, KBS C taper +1/2 inch 2 degrees upright, and T7 wedges in 52 and 58. Really looking forward to using these clubs this season.

November 2016

I have always played Mizuno blade type irons and cannot get along with offset. Now as a senior I want a bit more help. With the help of my club professional I purchased the JPX900 tour with Project X 4.5 70g carbon shafts.Also 1/4" longer with 1 extra layer of tape and parallel grips. These are much lighter than my MP-59 with 95g steel shafts. I have been very surprised just how easy they are to use. The feel is pure and even slightly mis-hit shots still give a good strike with a small click. The grips give great feel. I bought these irons with longevity in mind. I also matched in the new T7 52' with 9' bounce wedge. I have not been disappointed. Highly recommended.

November 2016

Tested the MP5, MP25 and JPX900 Tour as well as the JPX900 forged on GC2. Without exception these are the best irons I have owned in over 40 years playing as a Category 1 golfer. The forgiveness on off-center strikes is exceptional and I am hitting at least a club longer than my TaylorMade RBZ bladez using a slightly lighter S300 shaft than I have used for over 25 years. The lofts are a little stronger than my previous set. I like the matt finish which look a little like Ping irons in color and the boron and the distribution of weight around the head appears to provide added stability. Still early days as I have just received received a new custom set in only 6-days from order, which was impressive, but I already feel that I have a set which will only grow on me as I get used to them. Hats off Mizuno on a really impressive model.

October 2016

A club mechanic's dream. Wide range of shafts available and can be bent to precise needs of the golfer.

October 2016

Fantastic irons, very forgiving and hit these on average 10yds further . Medium flight and project X LZ shafts are superb.

September 2016

Great looking iron. Lofts a bit too strong though, and quite a bit different than the JPX900 Tour.

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