Mizuno JPX-900 Forged Irons Specifications
Full factory loft, lie and length chart for the Mizuno JPX-900 Forged irons, 2016–2018.
- Years produced
- 2016–2018
- Category
- Players Distance Irons
- Construction
- forged
- Material
- 1025E boron-infused carbon steel
- Set makeup
- 4–GW
Data confidence: medium. These figures are compiled from secondary sources rather than a manufacturer spec sheet. If you have an original catalogue page, send it over and we will update the chart.
Loft, lie & length chart
| Club | Loft (°) | Lie (°) | Length (in) | Offset (in) | Bounce |
|---|---|---|---|---|---|
| 4 | 21 | 60 | 38.25 | 0.161 | 1 |
| 5 | 24 | 60.5 | 37.75 | 0.152 | 2 |
| 6 | 27 | 61 | 37.25 | 0.142 | 2 |
| 7 | 31 | 61.5 | 36.75 | 0.132 | 3 |
| 8 | 35 | 62 | 36.25 | 0.122 | 4 |
| 9 | 40 | 62.5 | 35.75 | 0.112 | 5 |
| PW | 45 | 63 | 35.5 | 0.102 | 6 |
| GW | 50 | 63 | 35.25 | 0.093 | 7 |
Lofts and lies are the factory standard build. Individual clubs may differ if they have been bent, re-shafted or re-gripped during their life.
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Loft progression
About the Mizuno JPX-900 Forged
The JPX-900 Forged is Grain Flow Forged from a boron-infused 1025E carbon steel, which Mizuno used to build a thinner, stronger face while keeping a bendable hosel for loft and lie adjustment. It is a compact players-distance iron with a modest cavity and moderate offset, sold as a 4-PW plus gap wedge set. Lofts are stronger than Mizuno's MP line of the same period, with a 31-degree 7-iron. Lengths and lofts listed are the standard men's steel-shaft specification.
Stock shafts
- True Temper Project X LZ — steel
Related models
- Compact players model of the same family: Mizuno JPX-900 Tour
- Earlier Mizuno forged players iron: MP-57
- Compare: Mizuno JPX-900 Forged vs Mizuno JPX-850 Forged
- Compare: Mizuno JPX-900 Forged vs Mizuno JPX-919 Forged
- Compare: Mizuno JPX-900 Forged vs Mizuno JPX-900 Tour
- Compare: Mizuno JPX-900 Forged vs Mizuno MP-57
- Compare: Mizuno JPX-900 Forged vs Mizuno JPX-900 Hot Metal
- Compare: Mizuno JPX-900 Forged vs Mizuno MP-25
Frequently asked questions
What is the loft of a Mizuno JPX-900 Forged 7-iron?
The Mizuno JPX-900 Forged 7-iron has a loft of 31 degrees, with a 61.5-degree lie and a 36.75-inch steel-shaft length.
What is the JPX-900 Forged made of?
It is Grain Flow Forged from 1025E carbon steel infused with boron, which lets Mizuno use a thinner, stronger face while keeping the hosel bendable for loft and lie adjustment.
How strong are the JPX-900 Forged lofts?
They are stronger than Mizuno's MP irons of the same era: 31 degrees at the 7-iron and 45 degrees at the pitching wedge, versus 35 and 47 degrees on the MP-57.
Finding a used set
The Mizuno JPX-900 Forged ran from 2016 to 2018 and is no longer in production, so the used market is the only source. Search the used listings on eBay, and check the loft and lie against the chart above before buying — sets this age have often been bent from standard.
- InTheHoleGolf.com Mizuno JPX-900 Forged iron set product spec table (loft/lie/length/offset/bounce, 4-PW+GW set)
- 2ndSwing.com Mizuno JPX 900 Forged iron set specification table (identical figures, independent corroboration)
- GolfWRX launch article on the JPX-900 Hot Metal and JPX-900 Forged irons (1025 boron material, Grain Flow Forged, Project X LZ stock shaft)
Last updated 28 July 2026. Spot an error? info@loftchart.com