Anchoring the Nomad™ series, the Rotary™ weight block made its way into the starting lineup for many tour players. Like Wes Malott, many PBA members love its strong, predictable motion across a variety of oil patterns.

In designing the Outlaw and Bandit, our goal was to create a completely new weight block shape which maximizes pin action, accomplished through increased energy transfer(testing showed an increase of 12% when compared with a traditional core design), and works for both rev dominant and speed dominant players alike. The new Caliber™ weight block does just that!

In addition, we created a new coverstock blend called Inception™ which proved itself right from the outset, hence the name. The surface topography showed Ra values up nearly 10% from previous blends. The highly polished Bandit and 2000-grit Outlaw both handle a variety of conditions ranging from a typical house shot to tough tournament action. When you're looking for "long and strong" pick the Bandit. The Outlaw will be there when you need an earlier, more predictable reaction.

Put it all together and you have two flawlessly-designed weapons that are a MUST for any arsenal!

ROTO GRIP – it's all about the ATTITUDE.

The all-new Cell™ is an evolutionary design infusing our highly advanced asymmetrical Nucleus™ core with our Cytoplasmic™ solid reactive coverstock. This combination sustains high differential throughout the lanes and produces continuous hook on the heaviest oil patterns.

Allow your game to evolve... 

CELL™ Ball Facts

Coverstock	Cytoplasmic™ Solid  Reactive
Weight Block	Nucleus™
Ball Color	Turquoise / Navy / Black
Ball Finish	2000-grit Abralon®
Durometer	73 - 75 Rex D-scale
Flare Potential	7" + (High)
Weights	12 - 16 lbs.

CROWN LINE

The time of reckoning has arrived and the Roto Grip Kingdom welcomes the addition of the newest legend of the land. Bred from the original and designed to compliment its predecessor, the Cell™ Pearl will reign supreme.

The technologically advanced and performance proven Nucleus™ core delivers continuous predictable motion for all types of bowlers. The Cytoplasmic X™ pearl reactive coverstock is a first in the industry with the optimum amount of porosity and enhanced surface friction.

The synergy of core and coverstock on the Cell Pearl™ generates a strong angular move off the spot on those medium to lighter volume patterns with unprecedented predictability. This ball is the ultimate compliment to the original and will surely dominate the entire bowling kingdom.

CELL™ PEARL Ball Facts

Coverstock	Cytoplasmic X™ Pearl  Reactive
Weight Block	Nucleus™
Ball Color	Emerald / Cherry Red / Florescent Blue
Ball Finish	1500 Polished
Durometer	73 - 75 Rex D-scale
Flare Potential	7+ inches (High)
Weights	12 - 16 lbs.
SKU#	BBMRCP

So how exactly do we improve and expand upon already proven performance like that of the Infinite Theory?

Remember that ball motion is a culmination of the numerous factors like coverstock material, surface texture, porosity, weight block dynamics, layout, etc. When considering all of these variables, it is truly a technical feat to be able to balance all of these items and produce a bowling ball that meets the high standards you've come to associate with Roto Grip.

With the new Critical Theory, we are expanding the Theory series with its first pearl Insight™ coverstock. Designed to maximize dry lane traction, this shell will help increase your entry angle and sharpen your break point (CATS testing proved that the Critical Theory created the most entry angle in the entire product line), all in an effort to help you strike more! Its textured 4000-grit surface increases the Ra value, minimizes oil sensitivity, especially at the end of the oil pattern, and maximizes your bowling enjoyment.

Wrap the new textured pearl Insight cover around the high-torque, asymmetrical Triliptic core and you have some horsepower. Drill your new Critical Theory with your favorite layout, throw it at the dry boards to the outside, and watch it charge back with authority.

ROTO GRIP – It's all about the ATTITUDE.

CRITICAL THEORY™ Ball Facts

Coverstock	Insight™ Pearl  Reactive
Weight Block	Triliptic™ Core
Ball Color	Cherry/White/Obsidian
Ball Finish	4000-grit Abralon®
Durometer	73-75 Rex D-scale
Flare Potential	7+ inches (High)

SHIELD LINE

Value and Performance have always been synonymous with the Roto Grip® brand, and the all new Dark Star™ stands to continue that tradition.

Our first goal was to develop a stronger Shield™ Line ball to fit into the Roto Grip® line. The Team felt that there was too big of a gap between the Nomads and the Planet series balls. The intent was to create more mid-lane read with stronger backend motion, so we developed the Photon™ core with a lower RG value and a higher differential.

To enhance this core motion we also added Ultimate Vision™ pearl coverstock to this ball. This performance proven coverstock was found on the EPIC™ and Illusion™ series of balls. It boasts a higher coefficient of friction and surface texture for added traction in the oil and superior backend performance.

This combination of core and coverstock was the ideal fit into the line. Our tests showed that it filled the gap between the Nomads and the Planet series balls perfectly.

The legacy of value and performance will live on in the new Dark Star™.

 

DARK STAR™ Ball Facts

Coverstock	Ultimate Vision™ Pearl  Reactive
Weight Block	Photon™ Core
Ball Color	Dark Blue / Purple
Ball Finish	1500 Polished
Durometer	75-78 Rex D-scale
Flare Potential	3-4 Inches (Med)
Weights	10 - 16 lbs.
SKU#	BBMRDS

DARK STAR™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.56	0.040
15#	2.58	0.040
14#	2.59	0.040
13#	2.69	0.034
12#	2.70	0.021
11#	2.73	0.012
10#	2.77	0.015

Roto Grip Defiant

Color: Blue/Purple/Black

Coverstock: MicroBite™ Solid Reactive

Weight Block: Asymmetric

Factory Finish: 3000-grit Abralon®

Flare Potential: High

Radius of Gyration (RG): 2.49

Differential (Diff): 0.054

Intermediate Differential (Mass Bias): 0.017

Description: At Roto Grip, we rule the lanes! And you better have your game in gear if you want the same.

Starting at the center, the “GUTS”, the new Paragon™ core features contours designed to help expand the RG planes of the ball. This unique elliptical shape defines predictability of axis migration and allows you to perfectly match up your ball reaction to the condition at hand. Strong midlane roll and a HUGE continuous, sweeping hook on the backend! This is a serious technological advancement.

Moving on to the shell, the “GRIT”, we’ve developed a new MicroBite™ coverstock that is stronger and more textured than the competition. Microtechnology, the use of extremely-small structured additives down to a millionth of a meter, makes this possible. When finished with 3000-grit Abralon®, this new MicroBite shell creates friction where others just cannot! And finally, looking at the “GRIME”, the designated oil pattern and lane condition, the Defiant is sure to handle even the heaviest amounts of oil. Today’s lane oils have more solids than ever before, making the lanes very slick at times. With the new Defiant, no more worrying about heavy oil often found on tournament shots! Roto Grip has you covered.

Intent

Our goal was to expand the Shield™ line and complement the Dark Star™, Riot™ and Mars™.

With products built on the premise of value and performance, the Shield line offers an array of choices, each with a distinct ball motion. From medium-dry lane conditions to medium-heavy, there is a ball in the Shield line that fits your needs.

The modern bowling environment can produce violent ball reactions with even mild reactive coverstocks like Sure Grip II™. Often we have high friction lane surfaces, short oil patterns and squeaky clean backends. While the Mars is a terrific choice for medium-dry conditions, power players and traditionalists alike demand even MORE control and predictability. Control the uncontrollable with our new Grenade!

Design

At Roto Grip® we pride ourselves in providing a complete line of bowling balls in both value and performance.

With a medium RG (2.58) and medium differential (.040), the Photon ™ core utilized in both the newly released Riot and Dark Star, is the perfect foundation for the new Grenade.

You know that the coverstock is critical to ball motion, so even when testing on a shorter oil pattern, even a milder version of Sure Grip II with the Photon core was too much. We decided to step it down a notch and go 'Old School' with the new Retrothane™ shell because predictable ball reaction never goes out of style!

The Retrothane is a traditional urethane coverstock that will help you tame even the most scorching lane conditions. As witnessed on the PBA Tour and in World Championship events, urethane is still effective today. Redefine your arsenal with the new Grenade and know that no matter what they throw at you, Roto Grip has you covered.

Roto Grip – we're pulling the pin, tossing the Grenade and shaking it up.

GRENADE™ Ball Facts

Coverstock	Retrothane™ Solid  Urethane
Weight Block	Photon™ Core
Ball Color	Navy Blue
Ball Finish	2000-grit Abralon®
Durometer	75 - 78 Rex D-scale
Flare Potential	3-4" (Med)
Weights	12 - 16 lbs.
SKU#	BBMRGU

GRENADE™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.56	0.040
15#	2.58	0.040
14#	2.59	0.040
13#	2.69	0.034
12#	2.70	0.021

Intent

By now you have probably experienced the tireless power of the original Theory™. With the intense Insight™ reactive coverstock and Triliptic™ core, the Theory hit the market and immediately made a huge impact. And with the prior success of the Cell™ series and original Nucleus™ core shape, it was clear that the Theory had some big shoes to fill.

With the solid Insight cover, the Theory created a tremendous amount of hook in oil. In fact, it was borderline criminal! But some bowlers were looking for a smoother glide through the heads with a strong motion through the pocket, so here is where the new Infinite Theory comes into play.

Design

You might recall the new Triliptic core helps the ball get into a roll easier due to the additional contours and elongation of the ellipses within the shape of the weight block. The Infinite Theory's triple elliptical shape creates consistent axis migration and predictable ball motion, a must for consistency.

Consider as well the resilient outer core which minimizes the energy absorption upon impact at the pins. What this means to you is that you are now getting more energy transfer from the ball to the pins, increasing your pin movement which ultimately results in more strikes.

In addition, the innovative Insight™ coverstock has expanded surface roughness while the Infinite Theory's hybrid blend gives you added versatility. The Infinite Theory comes highly polished to float effortlessly through the heads, but with just touch of Abralon® you will also reap the benefits of a solid.

Roto Grip – it's all about the ATTITUDE.

INFINITE THEORY™ Ball Facts

Coverstock	Insight™ Hybrid Reactive
Weight Block	Triliptic™ Core
Ball Color	Red Pearl/Silver Pearl/Black
Ball Finish	1500 Polish
Durometer	73-75 Rex D-scale
Flare Potential	7+ inches (High)
Weights	12 - 16 lbs.
SKU#	BBMRIT

INFINITE THEORY™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.49	0.051	0.012
15#	2.49	0.058	0.013
14#	2.54	0.049	0.011
13#	2.57	0.032	0.010
12#	2.59	0.029	0.008

CROWN LINE

The success of the Cell™ series continues to grow, and so does the technology involved the newest edition. The signature touch to the line has been its continuous motion and versatility. This stems from the Nucleus™ core and its unique shape. This asymmetrical part maintains its dynamic integrity and differential value after drilling better than any other ball on the market.

Our intent was to utilize this same premise in the newly designed Nucleus II™ core. We have strategically removed mass along the axes of the core to increase the intermediate differential or mass bias strength. This translates into a quicker revving part along with increased motion potential down the lane.

The final touch is the utilization of the Cytoplasmic™ XL solid reactive coverstock. This second generation coverstock has an extreme amount of surface topography (Ra value). This means more friction from foul line through the pin deck.

The Evolution of Technology has Mutated!

MUTANT CELL™ Ball Facts

Coverstock	Cytoplasmic XL™ Solid  Reactive
Weight Block	Nucleus II™
Ball Color	Red/Black/Yellow
Ball Finish	2000 Abralon
Durometer	73-75 Rex D-scale
Flare Potential	7+ inches (High)
Weights	12 - 16 lbs.
SKU#	BBMRCM

MUTANT CELL™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.52	0.048	0.022
15#	2.54	0.047	0.021
14#	2.57	0.040	0.020
13#	2.64	0.035	0.014
12#	2.67	0.027	0.009

The progression continues with the introduction of the Mutant Cell™ Pearl. This next generation Crown™ line release adds another dimension to the already popular Cell™ line.

The Nucleus II™ core with its higher RG value and increased intermediate differential creates a much more defined breakpoint than the original, but still features the predictability that has made the Cell™ line so popular.

Enhancing that motion even further is the Cytoplasmic™ XL pearl reactive coverstock. The combination of increased surface topography and enhanced friction values delivers stronger mid-lane traction with extreme entry angle to the pocket.

This latest edition will be the most radical Cell™ of all...

MUTANT CELL™ PEARL Ball Facts

Coverstock	Cytoplasmic XL™ Pearl  Reactive
Weight Block	Nucleus II™
Ball Color	Aqua/Copper/Purple
Ball Finish	1500-grit Polished
Durometer	73-75 Rex D-scale
Flare Potential	7" + (High)
Weights	12 - 16 lbs.
SKU#	BBMRPM

MUTANT CELL™ PEARL Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.52	0.048	0.022
15#	2.54	0.047	0.021
14#	2.57	0.040	0.020
13#	2.64	0.035	0.014
12#	2.67	0.027	0.009

SWORD LINE

The Nomad™ solid features the performance proven Rotary™ core found in the highly successful Silver Streak Line of bowling balls. This mid-rg and higher differential weight block was one of the best sellers ever from Roto Grip®. The unique shape combined with the best coverstock technology of the time was elemental to that success.

Fast forward to 2009, we have taken this performance proven core and added a new coverstock to these balls. The Ultra Vision™ coverstock is bred from the original Sure Grip™ coverstock, but with friction enhancing additives that have given us great success with some of our other coverstock blends like the original Cytoplasmic, Cytoplasmic X™, and the recent Cytoplasmic XL™. This combination of enhanced friction and performance proven core technology is sure to please.

This will be the most highly sought after weapon of choice.

 

NOMAD™ Ball Facts

Coverstock	Ultra Vision™ Solid  Reactive
Weight Block	Rotary™ Core
Ball Color	Neon Green / Black
Ball Finish	1500 Polished
Durometer	73-75 Rex D-scale
Flare Potential	5+ inches (Med-High)
Weights	12 - 16 lbs.
SKU#	BBMRMD

NOMAD™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.52	0.049
15#	2.55	0.054
14#	2.57	0.046
13#	2.66	0.037
12#	2.70	0.021

 

Looking at the original Nomad™ and Nomad Pearl, the combination of core and shell was sought after by professionals everywhere. Used to the highest level of success, the Nomad solid helped propel Brian Voss to victory on the PBA Tour and Patrick Allen to a gold medal in the Men's World Championships in Munich, Germany.

These players use a variety of brands and choose the ball that they feel gives them the best chance of winning. Thank you, Brian and Patrick, for choosing Roto Grip and congratulations on your victories.

Looking forward to the new Nomad Dagger, we are relying upon the proven Rotary™ weight block design to carry the success of the series into the future. This unique core shape fits so many different styles of bowlers! Strokers, crankers, and tweeners alike have found success with the Nomads... in fact, the Nomads have come to be must-haves in Wes Malott's tournament arsenal, too.

And with an Ultra Vision™ Hybrid coverstock, the Nomad Dagger comes prepared with a 1500-grit polished finish. Matched with this Rotary core, it's a lethal combination. You need this ball.

ROTO GRIP – it's all about the ATTITUDE.

NOMAD DAGGER™ Ball Facts

Coverstock	Ultra Vision™ Hybrid Reactive
Weight Block	Rotary™ Core
Ball Color	Deep Purple Solid / Silver Pearl
Ball Finish	1500 Polished
Durometer	73-75 Rex D-scale
Flare Potential	5+ inches (Med)
Weights	12 - 16 lbs.
SKU#	BBMRND

NOMAD DAGGER™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.52	0.049
15#	2.55	0.054
14#	2.57	0.046
13#	2.66	0.037
12#	2.70	0.021

SWORD LINE

The Nomad™ pearl features the performance proven Rotary™ core found in the highly successful Silver Streak Line of bowling balls. This mid-rg and higher differential weight block was one of the best sellers ever from Roto Grip®. The unique shape combined with the best coverstock technology of the time was elemental to that success.

Fast forward to 2009, we have taken this performance proven core and added a new coverstock to these balls. The Ultra Vision™ coverstock is bred from the original Sure Grip™ coverstock, but with friction enhancing additives that have given us great success with some of our other coverstock blends like the original Cytoplasmic, Cytoplasmic X™, and the recent Cytoplasmic XL™. This combination of enhanced friction and performance proven core technology is sure to please.

This will be the most highly sought after weapon of choice.

 

NOMAD™ PEARL Ball Facts

Coverstock	Ultra Vision™ Pearl  Reactive
Weight Block	Rotary™ Core
Ball Color	Royal Blue / Silver
Ball Finish	1500 Polished
Durometer	73 - 75 Rex D-scale
Flare Potential	5+ inches (Med-High)
Weights	12 - 16 lbs.
SKU#	BBMRMP

NOMAD™ PEARL Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.52	0.049
15#	2.55	0.054
14#	2.57	0.046
13#	2.66	0.037
12#	2.70	0.021

Anchoring the Nomad™ series, the Rotary™ weight block made its way into the starting lineup for many tour players. Like Wes Malott, many PBA members love its strong, predictable motion across a variety of oil patterns.

In designing the Outlaw and Bandit, our goal was to create a completely new weight block shape which maximizes pin action, accomplished through increased energy transfer(testing showed an increase of 12% when compared with a traditional core design), and works for both rev dominant and speed dominant players alike. The new Caliber™ weight block does just that!

In addition, we created a new coverstock blend called Inception™ which proved itself right from the outset, hence the name. The surface topography showed Ra values up nearly 10% from previous blends. The highly polished Bandit and 2000-grit Outlaw both handle a variety of conditions ranging from a typical house shot to tough tournament action. When you're looking for "long and strong" pick the Bandit. The Outlaw will be there when you need an earlier, more predictable reaction.

Put it all together and you have two flawlessly-designed weapons that are a MUST for any arsenal!

ROTO GRIP – it's all about the ATTITUDE.

OUTLAW™ Ball Facts

Coverstock	Inception™ Solid  Reactive
Weight Block	Caliber™
Ball Color	Black/Mahogany
Ball Finish	2000-grit Abralon®
Durometer	73-75 Rex D-scale
Flare Potential	4"-5" (Med-High)
Weights	12 - 16 lbs.
SKU#	RLW

OUTLAW™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.54	0.051
15#	2.57	0.048
14#	2.60	0.044
13#	2.59	0.045
12#	2.65	0.035

The planet series has proven to be the best value performance line of bowling balls in the industry and the new Pluto™ is a welcome addition.

The Orbiter II™ core with its increased mass around the equator and lower differential provides smooth and controllable hook for a variety of bowlers on those medium oil patterns.

The Sure Grip II™ solid reactive coverstock has proven to be a staple in this line for both performance and durability.

PLUTO™ Ball Facts

Coverstock	Sure Grip II™ Solid  Reactive
Weight Block	Orbiter II™ Core
Ball Color	Scarlet / Charcoal
Ball Finish	2000 Abralon
Durometer	75 - 78 Rex D-scale
Flare Potential	2" (Low)
Weights	10 - 16 lbs.

Roto Grip® is committed to bringing you a wide variety of performance in the product line. When you throw Roto Grip know that you always get a tremendous value whether you choose a high-end Crown™ line ball like the wildly aggressive Theory™ or something more subtle and tame like that found in the Shield™ line.

 

Our intent with the new Rising Star was to create a ball that works well on medium-light oil patterns for bowlers of different skill levels and styles. With the benchmark-type symmetrical core shape, the original Dark Star™ was the cornerstone of the Shield line in 2010, and the new Rising Star will fit the same parameters and perform even better.

 

To increase total hook as compared with the Dark Star, the Ultimate Vision™ hybrid coverstock is a must for this new release. It creates a smooth glide through the heads with ample bite on the dry boards without being over-sensitive. And with a 1500-grit polished finish, the new Rising Star is sure to raise the bar.

 

A journey to the center of the ball will reveal the new Neutron™ core as the power source. The Neutron core's medium RG- medium differential shape is based on the concept started with the original Photon™ core utilized in the Dark Star. But you'll find an even lower RG and higher differential in the heavier weights. So look for more motion out of the Rising Star with all the benefits of a hybrid coverstock.

 

As you rise to the top with this new Roto Grip release, you'll quickly see why it earned the name Rising Star!

 

ROTO GRIP – it's all about the ATTITUDE.

RISING STAR™ Ball Facts

Coverstock	Ultimate Vision™ Hybrid Reactive
Weight Block	Neutron™ Core
Ball Color	Black Solid/Gold Pearl
Ball Finish	1500 Polished
Durometer	75-78 Rex D-scale
Flare Potential	4-5 inches (Med)
Weights	10 - 16 lbs.
SKU#	BBMRIS

RISING STAR™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.56	0.046
15#	2.55	0.042
14#	2.60	0.044
13#	2.67	0.017
12#	2.67	0.017
11#	2.73	0.012
10#	2.77	0.015

Design

With the phenomenal success of the original Rising Star™, the Shooting Star™ must utilize the new Neutron™ core as the power source. It’s just that good!

The Neutron core’s medium RG- medium differential shape is based on the concept started with the original Photon™ core. But with the Neutron core, you’ll find an even lower radius of gyration (RG) and higher differential in the heavier weights which hooks up heavy on the backend.

To increase the midlane roll and bring an earlier break point, we looked at a few different options. Testing the Ultimate Vision™ coverstock in a solid version produced the desired motion. Prepped with 2000-grit Abralon®, the Shooting Star created a break point that was two feet earlier and more rounded, or smoother. Controlling the pocket is often the key to higher scores. Shoot for higher scores with the new Shooting Star.

ROTO GRIP – it’s all about the ATTITUDE.

SHOOTING STAR™ Ball Facts

Coverstock	Ultimate Vision™ Solid  Reactive
Weight Block	Neutron™ Core
Ball Color	2-tone Purple
Ball Finish	2000-grit Abralon­®
Durometer	75-78 Rex D-scale
Flare Potential	4-5 inches  (Med)
Weights	10 - 16 lbs.
SKU#	RHT

SHOOTING STAR™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.56	0.046
15#	2.55	0.042
14#	2.60	0.044
13#	2.63	0.009
12#	2.65	0.011
11#	2.73	0.012
10#	2.77	0.015

CROWN LINE

The ROTO GRIP CELL™ was the ball that put us on the map. It was the culmination of a lot of research, tireless communication with bowlers and pro shops, and dedication to bringing something new, something different to the market.

It is that ATTITUDE that has made ROTO GRIP the brand that it is today. It was our theory at that time that if we brought you a superior product and created some excitement about that product that it would be successful and It was.

And now we have a new THEORY. No-- the theory regarding service and quality hasn't changed. In fact, we're only getting better. But the THEORY we are bringing to you is based on an exciting new interior shape called the Triliptic™ Core.

It's a triple elliptical shape that has a myriad of benefits from consistent axis migration to the ease of drilling and predictability of ball motion...it's all there! It's takes a lot of engineering to come up with a design this intense, and you can literally FEEL the blood, sweat and tears that have gone into the creation of this THEORY.

 

ROTO GRIP – it's all about the ATTITUDE.

THEORY™ Ball Facts

Coverstock	Insight™ Solid  Reactive
Weight Block	Triliptic™ Core
Ball Color	Two Tone Red/Royal Blue
Ball Finish	2000 Abralon
Durometer	73-75 Rex D-scale
Flare Potential	7+ inches (High)
Weights	12 - 16 lbs.
SKU#	BBMRTY

THEORY™ Ball Dynamics

Ball Weight	Radius of Gyration	Differential	Mass Bias Diff.
16#	2.49	0.051	0.012
15#	2.49	0.058	0.013
14#	2.54	0.049	0.011
13#	2.57	0.032	0.010
12#	2.59	0.029	0.008