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MOI (Moment of Inertia) is a measure of a body's resistance to angular acceleration (twisting). The idea behind applying MOI to golf at its heart is just making sure that the face strikes the ball cleanly without without twisting too much, throwing off the ball’s motion so it doesn’t move efficiently (like straight and far). MOI comes most into play most often on "imperfect" contact, when the ball and clubface meet someplace other than the sweet spot.

We utilize MOI technology to build sets of irons that are perfectly matched!

The result is that your 4-iron will feel exactly like your 7-iron, which feels exactly like your wedge. This ultimately yields better shots and lower scores.

2 examples of MOI in a golf club:

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