When you think player's irons, Mizuno is one of the first brands that should pop in your head. They make a great stick for better players, and they've built a reputation on catering to them.
With Mizuno's new JPX-900 line of irons, the company is releasing three sets of irons -- Hot Metal, Forged and Tour models -- that all use different materials to deliver performance for the different types of players that will use them.
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In the Tour model, they're trying to match some of the performance (not quite game improvement) characteristics of the JPX series with their player's irons in a package appealing to a low-to-mid handicapper.
As with the MP iron line, the JPX-900 Tour irons are made from 1025E Mild Carbon steel that is forged with the company's Grain Flow process.
The irons look at the top line a little thicker than your true muscleback blade, but they're akin to the MP-25s that are fantastic. However, the JPX-900 Tours are actually smaller than the MP-25s with a reduced toe height. The sole of the JPX-900 Tours are the thinnest ever made in the JPX line, set in a geometry similar to the MP line.
Not seen to the eye over the ball is the use of what's dubbed a Power Frame, a design characteristic that increases moment of inertia for more forgiveness. The cavity-back styling was modeled after the MP-64 irons, which was also the benchmark for the sound of the JPX-900 Tours.
The JPX-900 Tours use the True Temper’s Dynamic Gold AMT S300 steel shaft as the stock offering, with more weight in the shaft going toward the scoring clubs.
The Forged model uses 1025E Boron-infused steel, but it takes the first generation effort further by moving away from a single-thickness face to variable thickness to move material where it can support a player most on off-center hits.
A milled pocket cavity moved 21.5 grams of weight out of the bottom of the club head for use elsewhere -- namely, into the Power Frame to improved MOI.
The 3-parts-per-million infusion of boron into the steel strengthen the alloy and allows engineers to do more with the material to improve performance -- distance and forgivness -- without compromising the forging process and the softer feel that comes from it.
This iron is the catch-all model in the series, built for the most players.
JPX-900 Hot Metal
The Hot Metal model usus a new material, dubbed Chomoly 4140M, in the thinnest cup face the company has ever produced for maximum distance. The wedges in the Hot Metal irons use X30 steel, a softer material for feel and precision.
This model is a forged iron, but it's designed for maximum distance and game improvement, making Chomoly a good material to allow for precise fitting.
The Mizuno Golf JPX-900 Tour and Forged irons are available Sept. 16 and will sell for $1,200 in either steel or graphite shafts. The JPX-900 Hot Metal irons will be closer to $1,100.
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