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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 thelane 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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Free Shipping
Hot Buy
Idol
  • Idol
  • Ikon Core (14-16 lbs)
  • Modified Centripetal Core (12-13 lbs)

SKU: RG159
Reg. Price: $204.95 Our Price: $139.95
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Quantity:

Description 

Roto Grip Idol Bowling Ball


In testing and development we stumbled upon our strongest blend of Nano technology for the Roto Grip Brand to date, MicroTrax-S18. With tweaks in formulas and mix ratios we have created a coverstock that provides even more traction and is overall more aggressive than the Micro DNA Coverstock.

The newly created Ikon™ Core has pushed the symmetrical dynamics in the HP3 line to a whole new level. Measuring in with an rg value of 2.49 and a differential of .052, backend motion will not be a problem.

Bottom line, in the HP3 line we have been looking for the next generation of Haywire. Needless to say, the new IDOL is that and then some. You will see a similar motion in the midlane compared to the Haywire, but with the new core and new cover you will see more overall hook.

Roto Grip Idol Tech Sheet

Reviews

WRITE A REVIEW
Average Rating:
(based on 13 reviews)

Showing 1 - 5 of 13 Reviews:

RatingReviewerReview
by Matt Fazzone
on 4/12/2018
Roto Grip idol
I drilled my Idol 5 x 5 x 3 with no extra-hole. I was really excited when this ball was announced to use and all the hype behind it wasn’t a surprise. After the first few shots with it, it instantly became a favorite ball in my bag. For a ball with a RG of 2.48, this ball is super clean through the front part of the lane with a lot of angle in the back. Compared to the Hyper Cell Fused it was just as clean but a little more hook. These 2 ball will make a great 1-2 punch in any bowlers bag & if you were a fan of a Haywire, you’ll defiantly want this ball.
by Carol T.
on 4/10/2018
IDOL Ball Review
Weight: 14 lbs. Pin Length: 4-1/2 ” Drilling: 35 x 3 x 25 Pattern Length: 40 ft. Pattern Volume: Medium Pattern Type: THS Right Handed The IDOL has the symmetrical Ikon core weight block in the popular HP3 line, wrapped in the Micro Trax-S18 cover stock, which is a solid reactive core. The box finish is 2000 grit, but as always, can be polished or changed to suit a variety of lane conditions. It is an attractive Magenta color. I have used the IDOL on a 40 ft. kegel house pattern, and The Orleans modified House pattern in Las Vegas. I tried the IDOL at the 2000 grit box finish, and haven’t done any surface changes, as I’ve found this to be my go-to ball when i need to move inside and deal with the pattern trasitioning. I find it to be a little too strong on the fresh house pattern I’ve played on, but was a good starting ball on The Orleans modified house pattern. This ball is more aggressive than i expected it to be. I find it to have a similar motion shape to the Haywire, with a slightly earlier hook, and a stronger finish down lane. Being a lower rev player with ball speed around 14 mph, I could migrate in, left of center with the IDOL and still have it face up to the pocket with proper angle for me to carry. If you’re looking for a replacement for the Haywire, and perhaps a bit stronger, this is a great ball to have in your arsenal. For a mid priced ball, you’re getting the look and hook of a high end ball. It’s a win, win for me! Carol Teel Roto Grip Amateur Staff Member
by Casey Mattingly
on 4/5/2018
RotoGrip Idol
My layout on the Idol is 60 x 5 x 55. This is a new layout for me which puts the pin in the ring finger and the has the CG out enough for me to drop a 7/8" P3 hole. This ball give me a Great benchmark type motion. This is a ball that I can start the night on and just keep chasing it left with. I have read a lot of reviews on the Idol and many say that it is similar to the Haywire but I disagree. I was never a big fan of the Haywire, however I was a big fan of the DareDevil Trick. The motion I have with this Idol is more comparable to the Trick. Even with the new Strong cover (Micro Trax-S18 solid) Its a little cleaner through the front than the Trick and a stronger motion down lane. To give a little closer look into what I bowl on...We own a 16 lane, wood center, that was built in 1960. We currently use Kegel Prodigy Oil and the house shot is 42' and almost 21mL's. Casey Mattingly Storm/RotoGrip Staff Turbo Grips Staff
by Casey Murphy
on 3/28/2018
Roto Grip Idol Review by Casey Murphy
Orientation: Right Handed Rev Rate: 375 RPM Speed: 16-17 MPH PAP: 4 5/8 straight across Location: Enterprise Park Lanes, Springfield MO Pattern: High Volume THS Layout: 45, 4 ¾, 70 The Idol is a great new piece from Roto Grip. I was missing my Haywire, and along comes the Idol. The cover is super strong and the Idol picks up early. And that translates into a very smooth slow motion on the back. Perfect for sport shots or hooking backends. The Idol is the perfect replacement for the Haywire.
by Brian Watson
on 3/25/2018
Roto Grip IDOL review by Brian Watson
The Roto Grip Idol is a great addition to the RG line. I drilled mine 4.5 x 4 x 4.5 pin down no hole. The IDOL has great shelf appeal with the bright Magenta color, this is some white phasing is some of them. But I have a lot of good compliments on the color of the IDOL as it is different than a lot of bowling balls. With the Haywire being discontinued the IDOL is a perfect replacement. It is a strong symmetrical ball that rolls a little early and smooth downlane. Kinda of like a stronger IQ Solid. It will be a great ball on sport and PBA patterns, and especially at the USBC Open Championships. Brian Watson PAP- 3 5/8 up 1/14 RPM - 400 Speed - 16 Tilt - 17 Pro Shop Staff
123
Lane Condition: Medium to Heavy Oil
Coverstock: MicroTrax-S18 Solid Reactive
Weight Block: Ikon Core (14-16 lbs)
Light Weight Block: Modified Centripetal Core (12-13 lbs)
Ball Finish: 2000 grit Pad
Ball Color: Magenta
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: Medium-High
Date Released: March 9, 2018
Manufacturer SKU: BBMRTR
Warranty: 1 Year Warranty
Roto Grip Symmetric Drill Sheet

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