Question: What do RG and differential mean in bowling ball cores?
Answer:
RG (Radius of Gyration) measures how quickly the ball wants to start rolling. Lower RG balls roll earlier (good on dry lanes), while higher RG balls skid longer before hooking (better on heavy oil). Differential measures how much the ball flares. Higher differential creates more hook potential and a stronger backend reaction.
Go Deeper With This Related Article
An in-depth article that will help you answer questions about bowling ball cores. Learn what the different kinds of ball cores are and how each one affects the roll of you bowling ball.
Read Article
