IOMIC TECHNOLOGY
During our research and development process, we identified a significant limitation in traditional rubber grips: their inability to effectively address torque during the swing.
To overcome this, we turned our attention to elastomer-based (resin) materials.âšWhile initial testing showed that resin outperformed rubber in reducing torque, we quickly realized that existing resin compounds still fell short of the performance standard we envisioned.
In response, we partnered with leading plastics manufacturers to develop an entirely new materialâengineered specifically for golf grips.The result was IOMAX, a proprietary compound designed to deliver unmatched torque control, durability, and feel.
Why Grip Torque Matters
Because torque influence had never been rigorously studied within the golf grip industry, we also developed our own testing equipment: the Grip Torque Measuring Instrument. In our experiment, stainless steel rods were fitted with an IOMAX grip and a competitor's rubber grip, respectively. By simulating the moment of impact using artificial weighting, we were able to precisely measure the resulting torque values.
The findings were conclusive:
- showed torque values between 0.4 to 0.7 mm
- measured significantly lower at 0.2 to 0.3 mm
When translated into ball flight impact at 250 yards, this torque variation means:
- result in approximately 14.9 yards of deviation due to clubface opening
- hold the deviation to just 8.9 yards
Itâs important to note that this is a controlled estimate. In real swing conditions, added side spin would likely increase this dispersion even furtherâmaking torque reduction even more critical. We also continue to collect dynamic data to reinforce these findings.
ROBOT TESTING
To evaluate the effects of grip torque on swing accuracy, we conducted a controlled experiment using a swing robot and an ultra high-speed camera to precisely replicate a playerâs swing. The setup was consistent: identical club heads and shafts were used, with only the grips swapped between an IOMIC product and a leading competitorâs rubber grip.
When the club struck the ball at the center of the face, both grips performed similarly. However, the differences became pronounced during off-center impactsâspecifically toward the toe. In these instances, the competitorâs grip exhibited significantly higher torque at the moment of impact. This increased torque causes the grip to twist more in the playerâs hands, reducing control and accuracy.
While our proprietary Grip Torque Measuring Instrument predicted a push-out of 8.9 yards for the IOMIC grip, the actual testâwith real swing dynamics and side spinâshowed a deviation of 17.3 yards. In contrast, the competitorâs grip produced a dramatic 30-yard deviation under the same conditions.
In other words, the competitorâs grip resulted in nearly double the loss of accuracy.
This experiment underscores how torque-related performance differences become especially evident on off-center strikes. Thanks to our proprietary IOMAX material, IOMIC grips effectively suppress torque, delivering a more stable and consistent ball trajectoryâespecially under imperfect contact.
For golfers seeking greater accuracy and control, this clearly demonstrates that grip selection is just as critical as choosing the right head and shaft.
