Mizuno JPX-921 Forged vs Mizuno JPX-923 Forged
Side-by-side factory specifications. Differing values are highlighted.
Mizuno JPX-921 Forgedforged · Chromoly 4120 (Grain Flow Forged HD)Mizuno JPX-923 Forgedforged · Chromoly 4120 in the 4-7 iron, 1025E Pure Select mild carbon steel in the 8-iron through gap wedge
Specification comparison
| Club | JPX-921 Forged loft | JPX-923 Forged loft | JPX-921 Forged lie | JPX-923 Forged lie | JPX-921 Forged length | JPX-923 Forged length |
|---|---|---|---|---|---|---|
| 4 | 21 | 21 | 60 | 60 | 38.5 | 38.5 |
| 5 | 24 | 24 | 60.5 | 60.5 | 38 | 38 |
| 6 | 27 | 27 | 61 | 61 | 37.5 | 37.5 |
| 7 | 31 | 30 | 61.5 | 61.5 | 37 | 37 |
| 8 | 35 | 34 | 62 | 62 | 36.5 | 36.5 |
| 9 | 40 | 39 | 62.5 | 62.5 | 36 | 36 |
| PW | 45 | 44 | 63 | 63 | 35.5 | 35.5 |
| GW | 50 | 49 | 63 | 63 | 35.25 | 35.25 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Which should you choose?
The JPX-923 Forged is the stronger-lofted set — up to 1° stronger than the JPX-921 Forged 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-921 Forged specs and Mizuno JPX-923 Forged specs.