Although the JPX925 Hot Metal line was launched last spring, this follow-up is the forged model that utilises a zippy face material for plenty of distance in a forged iron while delivering the syrupy feel Mizuno is known for in its irons.
The new Mizuno ST-G driver features the compact pear shape and deep face that better players naturally gravitate to, but it expands the range of appeal through enhanced adjustability, the increased flexibility in the face fuelled by a new beta rich, lighter and stronger titanium alloy and the low-spin effects of a weighted through-slot in the sole.
The three new Mizuno ST230 drivers make a big push forward towards improving ball speed and optimising launch conditions with a lot of light carbon composite and a little bit of heavy steel.
Mizuno’s latest wedge offering is forged from mild 1025 carbon steel and features a back-cavity area designed to move the centre of gravity more towards the centre of the face.
Mizuno’s ST-G 220 joins a lineage of weight-kit drivers that dates back more than a decade, features three tracks – heel-side, toe-side and rear-centre – that fit two seven-gram weights to tweak launch, spin, forgiveness and direction.