The Roto Grip Defiant bowling ball is Roto Grip’s latest high performance release. Watch Christina Hardee throw the Roto Grip Defiant bowling ball! At Roto Grip, we rule the lanes! And you better have your game in gear if you want the same. Starting at the center, the “GUTS”, the new Paragon™ core features contours […]
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Watch the Roto Grip Theory bowling ball video! So how exactly do we improve and expand upon already proven performance like that of the Infinite Theory? Remember that ball motion is a culmination of the numerous factors like coverstock material, surface texture, porosity, weight block dynamics, layout, etc. When considering all of these variables, it […]