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Author Topic: Hyroad spec differences  (Read 2682 times)

lefty50

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Hyroad spec differences
« on: March 04, 2009, 10:24:34 AM »
Was looking at the Hyroad today, but was really shocked to see the difference in specs between 16 and 15.

16 - 2.52 and .057
15 - 2.57 and .046

That's definitely more than I can remember seeing in any other ball. Asking a potentially crazy question, is it really possible that the two weights can be so different and yet be fairly consistent in reaction? These are not small differences compared to other balls...
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greenefam

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Re: Hyroad spec differences
« Reply #1 on: March 04, 2009, 06:43:37 PM »
Lefty,

I think the answer to your question has to be no - they can't be that consistent.  The difference you are pointing out is usually between 15 and 14 and there is a difference there as well no matter what the manufacturer says.  However, very few people throw different weights so that difference doesn't matter much when you are throwing exclusively 15 or 16 lb. balls.
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sevenpin63

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Re: Hyroad spec differences
« Reply #2 on: March 04, 2009, 07:12:12 PM »
Question what do those numbers mean, what do they represent. Not to sound dumb but I just don't know.
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los2003

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Re: Hyroad spec differences
« Reply #3 on: March 04, 2009, 07:13:49 PM »
Rg and Differential
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sevenpin63

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Re: Hyroad spec differences
« Reply #4 on: March 04, 2009, 07:23:17 PM »
quote:
Rg and Differential


  OK but what do the differences mean in terms of ball reaction between the 16lb and the 15lb? Because I am in the middle of changing out my old 16lb balls and going to 15lb balls and I was looking at a Hy-Road.
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lefty50

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Re: Hyroad spec differences
« Reply #5 on: March 04, 2009, 07:56:04 PM »
Green, I agree with you, I think. The difference between 16 and 15 here is much more than I normally see.  I know there are no absolutes, but I typically have trouble with higher Rg/lower diff balls and tend to throw them thru the break point. When I see specs of 2.52/.057 for a 16, I expect a very small difference, typically 2.57 and .046 I wouldn't normally even look at.

Sadly, I'm not a physics expert, nor do I play one on TV... However, I'm leaning towards something else now, can't even trust the BTM review with that large a difference????
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ocbowler

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Re: Hyroad spec differences
« Reply #6 on: March 04, 2009, 07:56:39 PM »
quote:
quote:
Rg and Differential


  OK but what do the differences mean in terms of ball reaction between the 16lb and the 15lb? Because I am in the middle of changing out my old 16lb balls and going to 15lb balls and I was looking at a Hy-Road.
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OK, let me give it a try. Please correct me if I'm wrong.

The first number, RG: the higher it is, the ball would tend to skid further down the lane before it gets into a roll. Keep in mind the coverstock will be a big factor and you must compare balls with the same or almost the same coverstock.

The second number: RG diff.: the higher the number, the higher the "flare or hook potential".

So "generally speaking", you want a ball with lower RG( around 2.4 to 2.5) and high RG diff.( around 0.04-0.06} for oily lanes and a ball with higher RG( 2.6 to 2.7) and low RG diff.( say around 0.02)for dry lanes.

HTH

Edited on 3/4/2009 8:58 PM

Edited on 3/6/2009 8:42 PM
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sevenpin63

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Re: Hyroad spec differences
« Reply #7 on: March 04, 2009, 08:07:24 PM »
quote:
quote:
quote:
Rg and Differential


  OK but what do the differences mean in terms of ball reaction between the 16lb and the 15lb? Because I am in the middle of changing out my old 16lb balls and going to 15lb balls and I was looking at a Hy-Road.
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DON'T TEMPT THE BOWLING GODS


OK, let me give it a try. Please correct me if I'm wrong.

The first number, RG: the higher it is, the ball would tend to skid further down the lane before it gets into a roll. Keep in mind the coverstock will be a big factor and you must compare balls with the same or almost the same coverstock.

The second number: RG diff.: the higher the number, the higher the "flare or hook potential".

So "generally speaking", you want a ball with lower RG( around 2.4 to 2.5) and high RG diff.( around 0.4-0.6} for oily lanes and a ball with higher RG( 2.6 to 2.7) and low RG diff.( say around 0.2)for dry lanes.

HTH

Edited on 3/4/2009 8:58 PM


  Thank you, that pretty much covers the info. I was looking for.
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wasted talent

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Re: Hyroad spec differences
« Reply #8 on: March 04, 2009, 10:10:35 PM »
"Green, I agree with you, I think. The difference between 16 and 15 here is much more than I normally see. I know there are no absolutes, but I typically have trouble with higher Rg/lower diff balls and tend to throw them thru the break point. When I see specs of 2.52/.057 for a 16, I expect a very small difference, typically 2.57 and .046 I wouldn't normally even look at.

Sadly, I'm not a physics expert, nor do I play one on TV... However, I'm leaning towards something else now, can't even trust the BTM review with that large a difference????"
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How can differing specs between a 15 and 16 make you not want to buy a ball? Also, why would it take anything away from the validity of BTM's review of the ball?
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lefty50

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Re: Hyroad spec differences
« Reply #9 on: March 05, 2009, 05:22:43 AM »
Perhaps it doesn't, but that's really the question. When the values are so different between 15 and 16, and the review was given on a 16, can consistency be guaranteed in the review of a 15# ball? The answer would be yes at the negligible .01 and .02 value difference, but at these ranges, I'm not so sure. With my high side rotation and issues getting thru the break point, I would normally never look at a 2.57 ball.

Just curious...
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greenefam

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Re: Hyroad spec differences
« Reply #10 on: March 05, 2009, 07:05:27 AM »
If you look at most ball's RG and Diff for 16,15, and 14 in general 16 is the lowest RG and 14 is the highest.  2.52 to 2.57 is a fairly large jump from 16 to 15.  

I agree with you Lefty, if the review is on 16 and you are throwing 15 you need to assume additional length and vice versa.  I throw 15lb stuff and the HY-Road is definitely longer than most of the rest of my equipment.
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The Bowlers Edge 2

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Re: Hyroad spec differences
« Reply #11 on: March 05, 2009, 11:37:23 AM »
Well you are fine since BTM's reviews are done on 15lb equipment and that is the weight you throw.
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ocbowler

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Re: Hyroad spec differences
« Reply #12 on: March 05, 2009, 08:38:36 PM »
"Not" trying to make things more complicated: I actually looked into this myself before reading this post since I like the hybrid coverstock.

In the 14 lb. ball the RG is 2.58 and the RG diff. is only 0.038( actually it's not too little but when compared to 0.057 in the 16 lb. ?).

But it all depends on "when" you want to use the ball. The 14 lb. ball "probably" would work good on medium oil with a standard drilling( like pin 4.5 in. from PAP).  If I want to use the ball on heavier patterns then I'd drill it more aggressively( like pin 3 in. from PAP). We can also adjust the coverstock and/or add polish( I don't like either: too much work! ).

Edited on 3/6/2009 8:43 PM
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