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Author Topic: What does the RG of a ball tell you  (Read 794 times)

offthesheet

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What does the RG of a ball tell you
« on: November 13, 2009, 01:29:54 PM »
Ok, if a ball has a low rg like a 1.5 what does that mean as opposed to a ball having a higer rg like 3.5 or something?

Does the rg mean it hooks or rolls earlier or later or what?
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Juggernaut

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Re: What does the RG of a ball tell you
« Reply #1 on: November 13, 2009, 09:41:15 PM »
Radius of Gyration (RG) - An account of the location of the mass inside a bowling ball. Rg tells us whether the ball has the mass toward the center of the ball (low rg), toward the cover of the ball (high rg) or somewhere in between (medium rg).
1.Low rg balls rev up quickly.
2.Medium rg balls rev up slightly later.
3.High rg balls lope down the lane saving the energy until later.
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J_w73

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Re: What does the RG of a ball tell you
« Reply #2 on: November 13, 2009, 10:48:06 PM »
also.. I believe those numbers of 1.5 and 3.5 are just a rating that BTM uses.. I don't believe they are the actual rgs since the min max of the rg is..2.43 to 2.8..
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J_w73

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Re: What does the RG of a ball tell you
« Reply #3 on: November 14, 2009, 10:17:27 AM »
quote:
quote:
also.. I believe those numbers of 1.5 and 3.5 are just a rating that BTM uses.. I don't believe they are the actual rgs since the min max of the rg is..2.43 to 2.8..
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16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 808
Book Average 205,PBA Xperience ave180




The low limit has been changed by USBC.  It was 2.43, now raised to 2.46
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yes.. effective july 2010 I thought.
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16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 808
Book Average 205,PBA Xperience ave180

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