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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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  • Halo Pearl Bowling Ball
  • Centrum Core (14-16 lbs)
  • Modified Triliptic Core (12-13 lbs)

SKU: RG165
Reg. Price: $244.95 Our Price: $169.95
[?]
 
Special Instructions:
[?]
[?]
Quantity:
1132 units available

Description 

Roto Grip Halo Pearl Bowling Ball


The now famous Centrum Core has quickly become a fan favorite due to the radial disc which helps increase rotation/continuation for all styles of players. This core is driller and bowler friendly which means no matter how you drill it or how you throw it, it always gets rolling.

This cover was first introduced on the IDOL Pearl. It is the newest pearl formulation that will be used on HP4 & HP3 balls moving forward. This cover provides a good footprint in oil while still maintaining a strong responsive reaction to friction.

This ball was designed to be the perfect compliment to the original HALO. Sure, both balls feature the same core. However, the big difference is the coverstocks. Wrapping this core with the eTrax Pearl cover creates motion in a completely different part of the lane. If you were to drill a HALO Pearl and a HALO the exact same, you would see approximately 6-8 feet more skid, which transcends into A LOT MORE BACKEND!

Roto Grip Halo Pearl Tech Sheet

Reviews

WRITE A REVIEW
Average Rating:
(based on 24 reviews)

Showing 1 - 5 of 24 Reviews:

RatingReviewerReview
by Daniel
on 6/7/2019
Halo Pearl Review
The newest addition to RotoGrip’s HP4line is the Halo Pearl. The Halo Pearl used the same core as the original Halo, Centrum Core, but the coverstock is the eTrax-18 Pearl reactive. The eTrax-18 pearl reactive energizes the backend of the Halo Pearl. The combination of the Centrum Core and the eTrax-18 coverstock produces pin devastation whether you are a Hi Rev player or a Low Rev player like myself! The Halo Pearl is stronger than the No Rules Pearl especially on the backend. I was able to throw this monster on a fresh house pattern and a beat up house pattern and the results were the same… Power from the foul line to the pit! The layout I chose was 5X5X2.5 with no hole and that was based off my PAP which is 5 5/8 over and ¾ up. The Halo Pearl on the fresh house pattern allowed me to play closer to the oil line and use the friction right to create area. Usually for me a strong pearl ball will hand cuff me early because of the over under but the Halo Pearl smoothed edge right out. I could actually miss right and get recovery without worrying about the huge kick left. As the session continued I could chase left without any problems and the ball made me look great. The next day on the same pair after a birthday party and cosmic bowling, I had to move two arrows left and make sure I get the Halo Pearl going right to avoid the huge carry down and drier heads. Usually this leads to a practice session for shooting 10 pins however the Halo Pearl did not lose energy and continued through the pins with force. The Halo Pearl is a great addition to the entire line up of RotoGrip bowling balls. I guarantee this will not be the only Halo Pearl I will drill!
by Matt Fazzone
on 5/25/2019
Roto Grip Halo Pearl
Halo Pearl – 5.5 x 5 x 3 Yet another highly anticipated ball from Roto Grip, once the Idol Pearl came out earlier in the bowling season you knew it was only a matter of time before the stronger pearl version of the Halo to come out. Just like with the Idol and Halo, the Halo Pearl has the same cover stock as the Idol Pearl just in the asymmetrical version of it. Halo Pearl is a touch stronger than the Idol Pearl and also a little bit earlier. For everyone who loves either the Idol, Halo and Idol Pearl, the Halo Pearl is another must get from Roto Grip !
by Roto Grip Rick
on 5/25/2019
I am in heaven with the Halo Pearl
HALO PEARL - 40 X 4 X 50 - 14lbs. eTrax-P18 Pearl Reactive - 1500 grit and polished - 6" flare or higher LANE INFORMATION: 44FT THS ON HPL INSTALLED IN EARLY 2000'S This is the fourth ball I drilled after my return to bowling and needed a "stronger" piece then the Super Son!Q, needed longer length and same amount of angle to help compensate for my lack of ball speed and changing to 14lbs equiptment. I found the Halo Pearl to be unlike any pearl Roto Grip has had in the past. Even with having the IDOL Pearl with the same cover, the centrum core makes this ball REALLY strong, like He-Man strong. Even with carry down and moving deeper with my feet and changing the angle getting the ball to the breakpoint did not disappoint me or my partner that also tried it. He found that the deeper he played inside, the ball did not quit or give up in the heavier part of the pattern, did not over skid like other pearls in the past with similar layouts. Great BIG PIECE for any league or tournament bowler
by Trent Knoop
on 5/23/2019
Halo Pearl
Layout: 60 X 3 3/8 x 35 PAP: 5 over 3/4 up The Halo Pearl is one of the few asymmetrical pearl balls that fits my style. I spin the ball a little more than most, and a lot of asymmetrical pearl balls go way to long for me, and never sees the friction. But, I love this ball. This ball truly does dig through the oil, but is still very clean. I enjoy using this ball during the transition period at PBA events. I'll go to this ball around games 3-4, if not a little earlier. Also, I like to use this ball for THS, and I can play any part of the lane. If you had the OG Halo, then this ball will go great with it. When the Halo is hooking too early, or not storing enough energy because you're too far left, then that's when the Halo Pearl will come into play. I highly recommend this ball to anyone needs a complimentary ball for an asymmetrical solid.
by Jay Medina
on 5/22/2019
House Shot killer
My Name is Jay Medina and I am a Storm Staffer. I have my halo pearl drilled 50x5x45 and holy smokes this ball sparks off the back of the pattern. I have named this ball the house shot killer. The ball is really clean through the front of the lane and has hits like a tank. This has really allowed me to open up the lanes especially later in a set without losing any energy through the pins. Compared to the No Rules Pearl for me is was overall about 3 board stronger with a lot more continuation through the pins. I have used this on a THS as well as well as on the Earl Anthony with a 2000 grit surface.
12345
Lane Condition: Medium to Heavy Oil
Coverstock: eTrax-P18 Pearl Reactive
Weight Block: Centrum Core (14-16 lbs)
Modified Triliptic Core (12-13 lbs)
Ball Finish: 1500-grit Polished
Ball Color: Coal Pearl/Fuchsia Pearl/Sky Blue Pearl
R.G. / Diff.: #12 - 2.62 / .040
#13 - 2.60 / .040
#14 - 2.54 / .050
#15 - 2.49 / .050
#16 - 2.49 / .050
Mass Bias Strength: #15 - .018
Durometer: 73-75 on D-Scale
Flare: High
Manufacturer SKU: RPH
Date Released: March 8, 2018
Warranty: 1 Year Warranty
Roto Grip Asymmetric Drill Sheet

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