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Selecting the Proper Ball Weight


Adults:
The weight of the ball should be roughly ten percent of your body weight. Another good rule to go by is to choose a ball that is one to two pounds heavier than the house ball you are bowling with. The reason being is that the grip on the house ball is incorrect and a custom fit ball will feel much lighter because it will be easier to hold on to.

Kids: We recommend a weight equal to their age. Please note 6 & 8 lb bowling balls are designed for kids only not adults. Some manuacturers will not warranty 6 & 8 lb balls that are drilled for adults.


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What is the Pin Placement of a bowling ball?


The pin placement of a bowling ball is the distance between the center of the core and the CG. How far the pin is from the CG will help to dictate the balls reaction on the lane.
 
The shorter pins like (0 - 2") will roll up earlier on the lane, and will have a smoother arcing motion to the pocket.
 
The longer pins like (4"+) will go much farther down the lane before starting to hook toward the pocket. The longer pins will also have a more dramatic motion toward the pins (possibly like a hockey stick shape or a skid/flip type of reaction).
 
The (2 - 4") pins are the most versatile to lay out for your ball driller allowing them to manipulate the ball path and have it roll up earlier or later depending on how they lay the ball out.
 
Why is this important?
You want to have the bowling balls natural intended reaction to match up with your drilling pattern you select for the bowling ball. If you get a short pin but want the ball to go long the ball will want to roll up early, even if you drill the ball to go long. This will cause you to have to loft the ball or push through it harder to try to get the desired ball reaction. If you would have selected the correct pin distance and applied a complementary drilling to the ball, you can throw the ball with much less effort, and let the ball do the work for you. This allows you to relax and be smooth, improving your release and scores.

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What is the Top Weight of a bowling ball?


Top weight is the amount of weight difference from the top of the bowling ball (CG) and the bottom of the ball (opposite the cg).

In general their will always be more weight to the top of the ball (CG). This is due to the fact that when you drill finger holes into the ball you are extracting weight from the ball (generally 2 ounces or more depending the hole sizes and the density of the core) and it was initially designed to keep the ball balanced after it was drilled. 

Balls with lower initial top weight were generally more stable after drilled than those with higher top weights due to the fact that their was so much weight left over after drilling. This created imbalance and often time added length and backend reaction for early three piece (Pancake weight block) bowling balls.

Top weight by today's standards is not nearly as important because a majority of the weight mass of most bowling balls is closer to the center of the ball than the shell and top weight has less of an effect because ball motion is more about the placement of the weight block itself and not the static weight mass. Top weight these days usually dictates hole size for those off label drillings.


What does this mean in selecting the correct top weight?

2.5 or less - Is for standard drilling techniques. It is also used for advanced drillings where moving the cg further off center of span creates a stronger drilling. You may not needing a weight hole with this type of drilling but depending on how far the cg is moved you may need a weight hole.

2.5 to 3.5 - Is great for normal layouts, a weight hole is not typical for this top weight. Stronger drillings may require a weight hole.

3.5 or more - This top weight is good if you want the ball to push more (go farther down the lane) while adding backend motion, but only if the ball driller knows and incorporates this into the drilling.

It can also be used for placing a big weight hole in a ball because it adds static weight to the drilling. This means you can use a stronger drilling than normal but make it legal by adding a weight hole to remove excess top weight (you can only have 1 oz of top weight remaining after drilling).

***NOTE: These are just basic descriptions to what top weight can do. There are many more scenarios for each top weight and what is capable with each different top weight range. Please discuss with your ball driller how they plan to drill you ball to get a better idea if they plan to use a weight hole or not to achieve the ball reaction you desire. There is no way to guarantee a ball will not need a weight hole depending on the top weight selected, the ball layout will determine that.


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Drilling Protection Plan


If your new ball cracks while being drilled by a pro shop, CheapBowlingBalls.com will replace your ball free of charge! Manufacturers' warranties typically do not cover for cracking during drilling and drillers are not held responsible for their mistakes or defects in the ball.

*Ball must be purchased from CheapBowlingBalls.com
*Ball must be drilled within 11 days of receiving it (Extended to Feb 1, for purchases made between Black Friday and Christmas)
*Protection must be purchased before the ball is drilled
*Ball pictures must be sent for inspection and the receipt for drilling charges included also
*We pay shipping back to you


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Extended Warranty


Valid for 2 full years from date of purchase. Covers manufacturing defects of balls, bags & shoes.

This warranty does not cover incidental costs of replacement including, but not limited to; freight, measuring, and drilling.


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Shoe Size Charts

900 Global, Brunswick, Dexter and Storm bowling shoes run true to size.

Right Handed Shoes: Made for bowlers that bowl with their right hand because the slide pad is on the left shoe, which is the foot you slide with.

Left Handed Shoes: Made for bowlers that bowl with their left hand because the slide pad is on the right shoe, which is the foot you slide with.

Uni-sole Shoes: These shoes can be used for right or left handed bowlers because the slide pads are on both feet.



Don't know your shoe size? Do the following...

To get the best fit and comfort, we suggest measuring your feet each time you purchase a new pair of shoes because your feet will change during your lifetime.

1. Get a blank piece of paper, a pencil and a ruler or tape measure.
2. Put on the pair of socks you intend to wear with the shoes you are ordering. Through the course of the day, your feet will swell so it's best to measure them at the end of the day.
3. With the paper placed on a hard floor, sit down in a chair and place your foot flat on the paper. Lean forward, putting more weight onto the foot you are going to measure. As you probably know, your feet are different sizes so be sure to measure your larger foot.
4. Holding a pencil vertically, place a mark at the end of your heel. Place another mark at the tip of your longest toe.
5. With the ruler or tape measure, measure from the heel to the tip of your longest toe.



To Find Your Width:

Measure the distance between the two widest points on your foot. Reduce this number by 5 mm, or 1/5-inch. The result is the number you will use to determine your foot width.

To find your size, use the inch-to-size table. For example, if you are a man and your foot measures 10" long, you will wear a U.S. size 8 shoe. If you are between measurements, size up to the next larger size. It is easy to add a pair of socks to take up a little extra room but very difficult to make shoes that are too small comfortable.

Note: Just because you are a size 9 in one brand doesn't necessarily mean you are going to be a 9 in another. Footwear sizes and shapes vary from brand to brand. Please keep this in mind.
 

( Men's ) Sizing Chart

Heel to toe
Length
(in inches)

Heel to toe
Length
(in Cm.)

Size (USA)

Narrow Width
(B or C) for
this Size

Medium Width
(D) for
this Size

Extra Wide Width
(2E or 3E) for
this Size

9 5/16

23.7

6

3 2/16

3 8/16

3 14/16

9 1/2

24.1

6 1/2

3 3/16

3 9/16

3 15/16

9 11/16

24.6

7

3 4/16

3 10/16

4

9 13/16

24.9

7 1/2

3 5/16

3 11/16

4 1/16

10

25.4

8

3 6/16

3 12/16

4 2/16

10 3/16

25.9

8 1/2

3 7/16

3 13/16

4 3/16

10 5/16

26.2

9

3 8/16

3 14/16

4 4/16

10 1/2

26.7

9 1/2

3 9/16

3 15/16

4 5/16

10 11/16

27.1

10

3 10/16

4

4 6/16

10 13/16

27.5

10 1/2

3 11/16

4 1/16

4 7/16

11

27.9

11

3 12/16

4 2/16

4 8/16

11 3/16

28.4

11 1/2

3 13/16

4 3/16

4 9/16

11 5/16

28.7

12

3 14/16

4 4/16

4 10/16

11 1/2

29.2

12 1/2

3 15/16

4 5/16

4 11/16

11 11/16

29.7

13

4

4 6/16

4 12/16

11 13/16

30.0

13 1/2

4 1/16

4 7/16

4 13/16

12

30.5

14

4 2/16

4 8/16

4 14/16

12 3/16

31.0

14 1/2

4 3/16

4 9/16

4 15/16

12 5/16

31.3

15

4 4/16

4 10/16

5

 

( Women's ) Sizing Chart

Heel to toe
Length
(in inches)

Heel to toe
Length
(in Cm.)

Size (USA)

Narrow Width
(AA) for
this Size

Medium Width
(B) for
this Size

Wide Width
(D) for
this Size

Extra Wide
Width (EE)
for this Size

8 11/16

22.1

5

2 13/16

3 3/16

3 9/16

3 15/16

8 13/16

22.4

5 1/2

2 14/16

3 4/16

3 10/16

4

9

22.9

6

2 15/16

3 5/16

3 11/16

4 1/16

9 3/16

23.3

6 1/2

3

3 6/16

3 12/16

4 2/16

9 5/16

23.7

7

3 1/16

3 7/16

3 13/16

4 3/16

9 1/2

24.1

7 1/2

3 2/16

3 8/16

3 14/16

4 4/16

9 11/16

24.6

8

3 3/16

3 9/16

3 15/16

4 5/16

9 13/16

24.9

8 1/2

3 4/16

3 10/16

4

4 6/16

10

25.4

9

3 5/16

3 11/16

4 1/16

4 7/16

10 3/16

25.9

9 1/2

3 6/16

3 12/16

4 2/16

4 8/16

10 5/16

26.2

10

3 7/16

3 13/16

4 3/16

4 9/16

10 1/2

26.7

10 1/2

3 8/16

3 14/16

4 4/16

4 10/16

10 11/16

27.1

11

3 9/16

3 15/16

4 5/16

4 11/16

10 13/16

27.5

11 1/2

3 10/16

4

4 6/16

4 12/16

11

27.9

12

3 11/16

4 1/16

4 7/16

4 13/16

 

( Kids' - boys & girls ) Sizing Chart

Heel to toe
Length
(in inches)

Heel to toe
Length
(in Cm.)

Size (USA)

3 5/6

9.7

2T

4

10.2

2.5T

4 1/6

10.6

3T

4 1/3

11

3.5T

4 1/2

11.4

4T

4 2/3

11.9

4.5T

4 5/6

12.3

5T

5

12.7

5.5T

5 1/6

13.1

6T

5 1/3

13.6

6.5T

5 1/2

14

7T

5 2/3

14.4

7.5T

5 5/6

14.8

8T

6

15.2

8.5K

6 1/6

15.7

9K

6 1/3

16.1

9.5K

6 1/2

16.5

10K

6 2/3

16.9

10.5K

6 5/6

17.4

11K

7

17.8

11.5K

7 1/6

18.2

12K

7 1/3

18.6

12.5K

7 1/2

19.1

13K

7 2/3

19.5

13.5K

7 5/6

19.9

1K

8

20.3

1.5K

8 1/6

20.7

2K

8 1/3

21.2

2.5K

8 1/2

21.6

3K

8 2/3

22

3.5K

8 5/6

22.4

4K

9

22.9

4.5K

9 1/6

23.3

5K

9 1/3

23.7

5.5K

9 1/2

24.1

6K


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Shoe Size Protection Plan

 

If customer selects UPS for original shipping, CheapBowlingBalls.com will send you one UPS return label to get the shoes that do not fit back to us, and for the correct shoe size to be resent back to you one time only.

If customer selects USPS for original shipping, the customer will be responsible to ship the shoes back to us using USPS Standard Post and we will credit the amount of shipping back to you. CheapBowlingBalls.com will then send the correct shoe size back to you one time only using USPS Standard Post.

The shoe size protection plan must be purchased at the same time as the shoes. If ordering multiple pairs of shoes only the pair(s) which purchased the shoe size protection will be honored.

Shoe Size Protection Plan is valid only for the same model shoe you purchased just in a different size. You may not switch shoe models.

Valid only in the Continental US.


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Shoe Size Protection Plan

 

If customer selects UPS for original shipping, CheapBowlingBalls.com will send you one UPS return label to get the shoes that do not fit back to us, and for the correct shoe size to be resent back to you one time only.

If customer selects USPS for original shipping, the customer will be responsible to ship the shoes back to us using USPS Standard Post and we will credit the amount of shipping back to you. CheapBowlingBalls.com will then send the correct shoe size back to you one time only using USPS Standard Post.

The shoe size protection plan must be purchased at the same time as the shoes. If ordering multiple pairs of shoes only the pair(s) which purchased the shoe size protection will be honored.

Shoe Size Protection Plan is valid only for the same model shoe you purchased just in a different size. You may not switch shoe models.

Valid only in the Continental US.


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Special Instructions


Please add any special notes you have regarding Weight, Pin Placement, Top Weight or any other requests you have for us.

Please give us some room when requesting ball specs, we ask for:

 2 oz margin for Gross Weight (EX. 15.1-15.3 Gross)
.5-1" margin for pin placement (Ex. 3-4" Pin)
.5-1 oz. margin for Top Weight (Ex. 2.5-3.5 oz Top)


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  • Idol Pearl Bowling Ball
  • Ikon Core (14-16 lbs)
  • Modified Centripetal Core (12-13 lbs)

SKU: RG163
Reg. Price: $204.95 Our Price: $139.95
[?]
 
Special Instructions:
[?]
[?]
Quantity:
463 units available

Description 

Roto Grip Idol Pearl Bowling Ball


CORE...
Because you can never have too much of a good thing, the Ikon™ Core has changed the way everyone looks at the HP3 line. The low RG symmetrical shape with high differential not only provides plenty of flare throughout the lane, it also provides superb motion down lane and through the pins.

COVER...
With the original IDOL™ showcasing a solid cover built for heavy oil, we knew we needed something to compliment it. After a couple rounds of testing various pearl materials, we finally dialed in combination of the footprint in oil and responsiveness to friction. That is how the eTrax-P18™ Pearl Reactive coverstock was born.

CONDITION...
Hands down, this is the best pearlized ball we have ever created in the HP3 line to date. Between the core and cover, this ball will take down almost any condition you want to throw it on. Ideal for those Medium to Medium/Heavy conditions with some friction visible, this ball provides superb performance from almost any angle on the lane. And just like any pearl ball, it can be sanded to battle a bit more oil if need be.

Roto Grip Idol Pearl Tech Sheet

Reviews

WRITE A REVIEW
Average Rating:
(based on 18 reviews)

Showing 1 - 5 of 18 Reviews:

RatingReviewerReview
by Eric Wagner
on 2/14/2019
Idol Pearl
The Idol Pearl by Roto Grip was one of the first true pearls that I have drilled up since signing with Storm in December. The reason why I waited is that I have never been a fan of pearl equipment for my game, but since I was joining the staff I was like I need to see what this ball has to offer. I forget the total numbers on this ball, but the pin is in the ringer finger in the cg is kicked a little bit. So I tested this ball on a THS and this ball got through the fronts very clean and contained its energy for the back a ton and when that Ikon Core with the eTrax-P18 cover flipped that thing hit like a mack truck hit the pocket. So I went to a Sweeper tournament the following weekend and average 230 plus with this ball in hand and just keep being amazed with the performance of this ball. So get your hands on the IDOL Pearl now especially for tournament time coming up.
by Keith DeMaine
on 2/5/2019
IDOL Pearl by Keith DeMaine
The E-Trax P18 Pearl Reactive Cover is combined with Ikon Core which is also in the original IDOL. The IDOL Pearl in my opinion is perfect compliment to the original IDOL. I really like the IDOL Solid so I was very excited when this ball was announced. IDOL-Pearl is all I needed to hear and I was sold. Especially considering the IDOL Solid is my favorite benchmark ball on house or sport shots. A pearl ball that isn’t sideways in the back part of the lane. To me it’s much more responsive in the mid-lane than most pearl bowling balls. The IDOL Pearl is a great Symmetrical ball and a perfect addition to the HP3 line. The IDOL Pearl is a must have! Bowler Info: PAP 4 9/16 x 1 3/16 up; Ball Speed 18mph; Rev Rate 620 RPM #stormnation Keith DeMaine Storm Amateur Staff Connecticut State & County HOF
by Casey Mattingly
on 1/21/2019
RotoGrip Idol Pearl
First of all, I am not a fan of pearls or polish in general but for testing purposes I always throw the balls how they come out of the box. Typically they get hit with a 2000 or 3000 pad very quickly. After about 10 games with it I have to say that I'm pleasantly surprised with the Idol Pearl. This ball reads the middle part of the lane very well for a pearl and still retains energy to create a strong but controllable motion down lane. Compared to my Son!Q, the Idol Pearl is much more continuous whereas my Son!Q was much more forward rolling off the spot. I am coming off of an injury at the moment and I have only bowled on fresh lanes by myself to practice. I am anxious to see how this ball deals with transition. My Layout for this ball is 60 x 5-1/2 x 35. This puts the pin above my bridge and my CG about an inch off of the center line. Favorite Balls at the moment: Code X- 60 x 5 x 70 pin down with a low hole HyRoadX- 60 x 5 x 70 pin down, no hole PhysiX 60 x 5 x 35 Pin up,
by PJ Haggerty
on 1/5/2019
Roto Grip Idol Pearl Ball Review by PJ Haggerty
The newest addition to the Roto Grip HP3 line is the Idol Pearl. I am a big fan of the solid version of the Idol and the pearl is just as good. I think the Idol Pearl compliments the solid version perfectly. Also, this is the strongest pearl ball I’ve ever thrown. This is a ball I will be able to throw on several different patterns and have a ton of confidence in as I pull it out of the bag. I’ve drilled one so far and used one of my standard layouts. It’s mapped out as 5 x 4.5 and I took the surface to 3000 by hand. This puts the pin above my bridge and is a cleaner, more angular version of the original Idol. I’ve been able to use the Idol Pearl on multiple patterns, but they must have volume. Because the Idol Pearl is the strongest pearl I’ve thrown, it’s been a perfect step down from the Idol, but still stronger than the Winner Solid and Match-Up line. Go drill an Idol Pearl! #SquadRG
by Matthew Kemper
on 12/27/2018
Idol Pearl by Storm Staffer Matthew Kemper
The Roto Grip Idol Pearl is Roto Grips newest HP3 line release. The Idol Pearl is covered with the eTrax-P18 pearl stock and is finished at 1500 Grit polish. The Core is the Symmetrical Ikon Core which is also found in the original Idol. I drilled my Idol pearl with the pin and CG stacked below my bridge. This is the same layout I put on my No Rules Pearl. My intention was to replace the No Rules Pearl but after throwing the Idol Pearl, the Idol is a few boards weaker. The pin down reaction really smoothed out the back end reaction on the Idol Pearl. The ball gives me a great look between first arrow and third arrow especially on fresher patterns. Once the lanes start to break down and I have to move in I’ve found that I start to lose carry or the ball reads too early on the broken down heads and I have a hard time keeping the ball in the pocket. The Idol Pearl is a great compliment to the original Idol. As far as solid/pearl combos, the Idols might be my favorite one.
1234
Lane Condition: Medium to Heavy Oil
Coverstock: eTrax-P18™ Pearl Reactive
Weight Block: Ikon Core (14-16 lbs)
Modified Centripetal Core (12-13 lbs)
Ball Finish: 1500-grit Polished
Ball Color: Royal/Amethyst
R.G. / Diff.: #12 - 2.65 / .035
#13 - 2.59 / .045
#14 - 2.54 / .049
#15 - 2.49 / .052
#16 - 2.49 / .049
Durometer: 73-75 D Rex Scale
Flare: High
Date Released: November 23, 2018
Manufacturer SKU: BBMRDP
Warranty: 1 Year Warranty
Roto Grip Symmetric Drill Sheet

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