FAQ Tag: MOI

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Are a club’s MOI and the clubhead’s MOI the same thing?

No — they are two separate parameters.The club’s MOI (Moment of Inertia) refers to the entire club — that is, the assembled head, shaft, and grip. The higher the MOI, the more force is required to accelerate the club during the swing. The clubhead MOI, on the other hand, applies only to the head itself.
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Can Swingweight be converted to MOI?

Unfortunately, no. These two club parameters are calculated in completely different ways and must be determined independently. In most cases, increasing the swingweight will also increase the MOI, but there is no simple conversion formula between them. The opposite situation is also possible — for example, increasing the grip weight will lower the swingweight while
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