Mizuno JPX-850 vs Mizuno JPX-900 Hot Metal
Side-by-side factory specifications. Differing values are highlighted.
Mizuno JPX-850investment cast · stainless steelMizuno JPX-900 Hot Metalinvestment cast · Chromoly 4140M
Specification comparison
| Club | JPX-850 loft | JPX-900 Hot Metal loft | JPX-850 lie | JPX-900 Hot Metal lie | JPX-850 length | JPX-900 Hot Metal length |
|---|---|---|---|---|---|---|
| 4 | 22 | 21 | 60 | 60 | 38.25 | 38.25 |
| 5 | 25 | 24 | 60.5 | 60.5 | 37.75 | 37.75 |
| 6 | 28 | 27 | 61 | 61 | 37.25 | 37.25 |
| 7 | 32 | 31 | 61.5 | 61.5 | 36.75 | 36.75 |
| 8 | 36 | 35 | 62 | 62 | 36.25 | 36.25 |
| 9 | 40 | 40 | 62.5 | 62.5 | 35.75 | 35.75 |
| PW | 45 | 45 | 63 | 63 | 35.5 | 35.5 |
| GW | 50 | 50 | 63 | 63 | 35.25 | 35.25 |
| SW | — | 55 | — | 63 | — | 35.25 |
| LW | — | 60 | — | 63 | — | 35.25 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Which should you choose?
The JPX-900 Hot Metal is the stronger-lofted set — up to 1° stronger than the JPX-850 on matching clubs. Expect longer carry per numbered iron but a flatter descent angle; gapping at the wedge end is where that shows up.
Both charts are reproduced in full on their own pages: Mizuno JPX-850 specs and Mizuno JPX-900 Hot Metal specs.