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Mizuno Turns To Classic Game Improvement

Mizuno’s latest iron offerings, the JPX-800 and JPX-800 Pro, represent a new market segment foray for the Japanese equipment maker, between the one in which it sells its fabled forged blades and another that includes the cast, super-game-improvement clubs it has also produced with strong results. 

“This is a new category for us, and we think the JPXs will give us a very broad appeal with golfers ranging from scratch players to those with handicaps in the mid-20s,” says David Llewellyn, golf club R&D manager for Mizuno USA. “The clubs do not have a lot of offset or overly thick top-lines and soles. Yet they are designed to be the longest, most forgiving irons we have ever made.”

Mizuno uses a new manufacturing process called “Hot Metal” construction with the cast JPX-800 that increases the natural strength of the ultra-thin clubface in an effort to enhance distance. At the same time, it employs what company officials describe as “MAX COR” construction in the 4-7 irons to deliver the highest allowable COR as well as a center of gravity that is low and deep. A pocket cavity with an external power-bar design, which expands the sweet-spot area and lowers the center of gravity, is utilized in the scoring irons, from 8 to PW. In addition, an aggressive triple-cut sole ensures solid ball striking from all types of lies, while a multi-material cavity badge provides tuned impact sound. 

As for the JPX-800 Pro, it features the highest COR in a one-piece, Grain Flow forged Mizuno iron. A large cavity is created using a milling process that thins the face to raise ball speed as it optimizes a low, deep center of gravity. 

“The performance with this iron is just as strong as the JPX-800 with regards to distance and forgiveness,” says Llewellyn. “But the clubhead is a little smaller, the sole a bit narrower and the top-line a little thinner. There is also less offset.”

The JPX-800 irons are available in right- and left-handed models, with True Temper Dynalite Gold XP steel and Mizuno Exsar IS4 graphite shafts stock. With regards to the JPX-100 Pro, it comes in right-handed models only and with the Dynalite Gold XP shafts. 


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