MOI Golf Abbreviation

Moment of Inertia

Moment of Inertia (MOI) in golf refers to a measurement of a clubhead’s resistance to twisting upon impact, affecting forgiveness, stability, and consistency in ball striking. A higher MOI reduces the effects of off-center hits, ensuring straighter and more controlled shots, while a lower MOI allows for greater shot shaping but less forgiveness.

MOI is particularly important in drivers, irons, and putters, as it influences how the club reacts during mishits. Manufacturers design clubs with high MOI by redistributing weight toward the perimeter of the clubhead, improving stability and minimizing loss of distance on mis-hits. Golfers seeking forgiveness and consistency often prefer clubs with higher MOI, while players looking for workability and shot control may opt for lower MOI designs.