What does RG mean on a bowling ball?

What does RG mean on a bowling ball? Knowing just some of the basics can really help you choose the right equipment for your game. RG stands for ‘Radius of Gyration’ and is defined as the distance from the axis of rotation at which the total mass of a body might be concentrated without changing its moment of inertia.

Knowing just some of the basics can really help you choose the right equipment for your game. RG stands for ‘Radius of Gyration‘ and is defined as the distance from the axis of rotation at which the total mass of a body might be concentrated without changing its moment of inertia.