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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:
393 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 30 reviews)

Showing 1 - 5 of 30 Reviews:

RatingReviewerReview
by Doug Cutler
on 3/23/2019
Idol Pearl
My name is Doug Cutler and the ball review I am doing is the Idol Pearl. My first Idol pearl drilling is 45 x 4 1/2 x 70 and the surface is a used 3000 pad. This ball is one of my favorite balls in my bag and is one of my benchmark balls. This ball is really clean thru the mid lane and man it has some back end. This ball is great on any THS and any Medium to Oily Lanes. I have really used this ball when my Idol starts to read to early in the mid and start to leave some weak 7 pins. I have shot 2-300 games with this ball already. This ball has really sold well at work and also the PBA tour guys really like this ball also and have seen it on the shows a lot this year. My Idol and Idol Pearl are a great 1-2 and will bring both of these balls for Nationals. My Idol and Idol Pearl are drilled the same. This is a ball you will definitely will need in your bag if it is not already. I love this ball and will get another one pretty soon. #squadRG #ownit #idolpearl Doug Cutler Storm/Roto Grip Staffer PBA Regional Champion
by Tommy Gollick
on 3/22/2019
Idol Pearl Review by Tommy Gollick
The Idol Pearl is the pearl release in the HP3 line of bowling balls from Roto Grip. The Idol pearl has excellent shelf appeal with the royal/amethyst color combination of the eTrax/18 pearl cover. The pearl uses the same Ikon core as the solid Idol, which has an Rg of 2.49, and a differential of 0.052, in 15lbs. I drilled the Idol pearl with a 4.5” pin, and 2.5” pin buffer. This layout is only slightly different from the 4.25 x 2.5 Son!Q I will use for comparison. Out of the box, the cover on the Idol had a little more bite to the front of the lane, than I would’ve expected for a 1500 polished pearl. This cover is strong. Keeping my ball speed a little more firm helped the early traction. Once the Idol got to the break point, it made a very strong move and change of direction. Once I got a few games on the ball, that early read seemed to somewhat disappear. In total, out of the box, the Idol pearl was a similar shape, with more board coverage, than the Son!Q; Son!Q’s “big brother” so to speak. Giving away the pocket wasn’t an issue to have recovery without any quit in reaction. Using the Idol pearl on medium volume house conditions was almost too angular, and too much ball, pushing me deeper than I really wanted to play. I tried adjusting the cover with a 2000 abralon pad, and this seemed to not change the shape all that much, but give me more traction on higher volumes of oil. I like the Idol Pearl. I will admit that for me personally, I will sooner reach for the SonIQ because it has the same shape, but covers fewer boards, and I see more often medium volume patterns, than the heavier volumes that I would want, to keep the Idol Pearl in my comfort zone. I can use the Idol pearl when I need that shape on higher volumes or real slick oils; or on a lane surface that has less built in traction like pro-anvilane. The Idol pearl isn’t a control ball in my opinion, but neither was the Idol. My ball roll gives me bigger backend reaction with these balls, compared to what I see from other bowlers using this core shape. Thank you for taking the time to read my review of the Idol Pearl. Own It!
by Matt Wischmann
on 3/20/2019
Idol Pearl review by Matt
I am a huge fan of the original IDOL so I had to give the pearl a shot, after a few games I knew it was making it in the bag. The IDOL Pearl has such an unique shape that allows you to play more parts of the lanes, it gets into a roll earlier then any other pearl I have thrown and still finishes strong. For me it is an easy to control pearl ball that doesn't get the skid flip that I get from most pearlized balls and I would pull this out on games 4 and 5 on bigger set blocks maybe earlier depending on the patterns when I need to get a little cleaner through the heads, this ball fits in between my IDOL and Marvel Pearl. Its a must have in the bag!!
by Mike LeViner
on 3/19/2019
Roto Grip Idol Pearl
Layout: 60 x 4 1/2 x 40 Surface: 4000 The Idol Pearl brings a unique ball roll to the Roto Grip lineup - a pearl symmetric that is rolly, yet can still get around the corner when you need to move further left. As is the case for all shiny ball out of the box, I cracked the surface slightly with a 4000 pad, to smooth out the reaction just a bit. What I got was a ball that can be played straighter on fresh, as long as it isn't heavy oil. The rolly nature of the core helps to control the skid flip nature of the cover, and a nice mixture of the 2 is what contributes to the versatile nature of this ball. It is best at home on medium oil, but can cover medium-heavy down to medium-dry. In comparison to the Halo Pearl, which has the same coverstock, the Idol Pearl is cleaner through the front and is a couple boards less hook overall. Starting with the Halo Pearl and then transitioning to the Idol Pearl has been a good move for me when the Halo Pearl starts to hook a bit too early due to the strength of the core. Mike LeViner
by Mark Tarkington
on 3/15/2019
Idol Pearl - Mark Tarkington
Ball weight: 16 Rev Rate: 400 Ball Speed: 17 Axis Tilt: 7 Axis Rotation: 45* PAP: 3 3/4 horizontal, 7/8 up Layout: 4” pin to pap, 2 ½ from VAL, buried thumb hole I normally tend to roll big asymmetricals much more than symmetricals. Big asyms just tend to roll better for me. That said, with all of the love the Idol Pearl has been getting, I had to punch it up and see where it ranks in my bag. Well, I can say that after 6 games, this ball has moved into my main bag. I’ve only used it on the THS in two different houses, but it was pretty amazing for those games. It’s really clean through the fronts with a defined breakpoint. Of my league equipment, this one makes the cut. It’s a bit stronger than the HyRoadX (with the same layout), a bit weaker than the Physix, but a lateral move from the Code Black. The shape is very similar to the Code Black, but it’s a bit quicker off the spot.
123456
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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