A model that specializes in straightness with a design that reduces side spin.
Furthermore, by making the body thinner, it is much easier to swing!
The unique semi-shallow face provides the perfect high trajectory for a wide range of players.
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Points of interest
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High initial velocity, high launch and big carry.
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Compared to the KZ-5, the grip is more controlled and it is easier to hold. |
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The impact sound is dry and high-pitched. By loosening the sole weight a little, it becomes not too high-pitched and has a nice feel.
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The same swing feel as a speeder
Shorter length significantly improves hit rate and straightness
Shortening the club has the advantage of improving the hit rate and straightness. On the other hand, it is true that there are disadvantages such as a lighter balance, a change in the swing feel, a stiffer shaft, and a harder ball to lift. Therefore, we have adopted the metal tube composite "MCT" for wood shafts, which allows us to achieve the same balance even if the shaft is 1 inch shorter than a regular shaft. In addition, we have eliminated the disadvantages by using multi-hoop ply lamination, high torque design, and thicker diameter. We have achieved a light swing feel that is characteristic of a "speeder".
In general, the benefits of shortening the club length include improved meet rate and straighter flight. In recent years, many players have been using short-length drivers on the PGA Tour. However, if you try to shorten a normal club, the club balance becomes lighter, and adjusting the head to be heavier changes the feel of the swing.
Regarding the shortening of drivers, we exhibited a short-shaft concept driver shaft at JGF2018 and collected feedback at the JGF venue and at subsequent test drive sessions.
・Surprisingly many people have tried drivers with a length of around 44 inches. ・The club balance is not right, so they adjust it by attaching lead to the head, but this changes the feel of the swing. ・Users are put off if the balance remains light. ・When a normal shaft is shortened, it feels stiff and the ball does not go up.
The response was greater than we expected, so we decided to move forward with commercializing a shorter shaft.
Metal Composite Technology
The metal tube used in the MCI has been adopted for the first time in a driver. By not increasing the rigidity of the tip and placing the center of gravity at the front, a normal club balance and swing feel is possible with a normal head weight (approximately 200g)/44 inches.
Multi-hoop ply laminate
The shorter length makes it harder to feel the movement of the shaft, so by layering multiple hoop layers only around the grip, we have given the tip a smooth feel without making it feel stiff.
High torque design
For short lengths, the torque has been adjusted to be easier (good grip) so that it is not too tight.
Set the vibration frequency to a softer setting
The decrease in launch height and head speed caused by the shorter length has been eliminated by setting the vibration frequency on the softer side.
Thickening of shaft diameter
The outer diameter has been adjusted so that the grip is not too thin. This allows for a comfortable swing without putting too much pressure on the right hand.
| Model name |
flex |
Product Manager |
weight |
torque |
Tip diameter |
Butt diameter |
condition |
| SPD SLK 5 |
R |
45 |
56.5 |
6.1 |
8.5 |
15.40 |
During ~ |
| S |
58.5 |
6.0 |
15.45 |
| X |
62.0 |
5.9 |
15.50 |
| SPD SLK 6 |
S |
66.5 |
5.1 |
15.55 |
| X |
71.0 |
5.0 |
15.60 |
