Srixon ZX4 irons
Hollow construction, milled cavity
Forged face, progressive grooves
Wide Tour V.T. Sole
Tungsten sole weighting in low and mid lofts
5-iron loft 23°, pitching wedge 43°
Stock shafts: Nippon N.S. Pro 950GH NEO, UST Mamiya Recoil ES Smacwrap
Stock grip: Golf Pride Tour Velvet
8-piece steel shafts $1,299.99, graphite $1,399.99
At retail March 5
Srixon has introduced the game-improvement ZX4 model, the final member of the ZX iron family joining the ZX7 and ZX5. The newbies have the widest sole with the most offset of the series as well as the longest blade of the three.
Each of the ZX4s has a hollow clubhead with the long and mid irons having added tungsten to get the center of gravity closer to the sole for higher launch. The face is forged from HT1770 steel which is strong and therefore can be thinner resulting in more flex at impact and better distance. This lightweight construction works well with the milled cavity design the company calls MainFrame that is expressly designed to increase COR.
The Srixon V.T. Sole, which we have always liked, is wider than in the ZX7 and ZX5 but still does the job of minimizing turf interaction as it has done on other models.