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.
Coverstock: Retrothane Weight Block:Photon Core (14-16)
Ball Color: Navy Blue Ball Finish: 2000-grit Abralon
Track Flare Potential: 3-4 Inches (Med) on a scale of 1-10 Low-High
Recommended Lane Conditions: Medium-Light Oil
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…
Coverstock: Cytoplasmic XL Pearl Reactive
Color: Aqua/Copper/Purple
Weight Block: Nucleus II in 14 – 16lbs Modified Nucleus™ Core in 12, 13lbs.
Factory Finish: 1500-grit Polished Track Flare Potential: 7″+ (High)
RG Average: 2.52 (Medium Low) on a scale of 2.43-2.8 Very low-High Break Point
RG Differential: .048 (Medium) on a scale of .000-.080 Low-High Flare
Recommended Lane Conditions: Medium-Heavy Oil
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™.
Coverstock: Ultimate Vision Pearl Reactive Weight Block: Photon Core (14-16)
Ball Color: Dark Blue/Purple Ball Finish: 1500 Polished
Track Flare Potential: 3-4 Inches (Med) on a scale of 1-10 Low-High
Recommended Lane Conditions: Medium-Light Oil
At Roto Grip® we pride ourselves in providing a complete line of bowling balls in both value and performance. The recent introduction of the Dark Star™ created a nice complement for those medium to drier patterns, but we still needed a strong solid reactive in the Shield™ Line for those patterns with a bit more volume up front. The RIOT™ is just what the kingdom ordered. The utilization of the Ultimate Vision™ solid reactive coverstock is the key to this addition. The increased surface topography and greater coefficient of friction battles those medium to heavier volume patterns with fierce intensity. The Photon™ core delivers the energy behind the RIOT™. This newly designed medium RG (2.58) and medium differential (.040) core creates greater mid-lane read and increased entry angle to the pocket than its predecessors in the Planet™ series. It’s time to start your RIOT™ in the Bowling Kingdom! Coverstock: Ultimate Vision Solid Reactive
Weight Block: Photon Core (14-16) Ball Color: Dark Red/Black Ball
Finish: 2000 Abralon Track Flare Potential: 3-4 Inches (Med) on a scale of 1-10 Low-High
Recommended Lane Conditions: Medium-Light Oil
The success of the Cell series continues to grow, and so does the technology involved the 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!
Coverstock: Cytoplasmic XL Solid Reactive
Color: Red/Black/Yellow
Weight Block: Nucleus II in 14 – 16lbs Modified Nucleus™ Core in 12, 13lbs.
Factory Finish: 2000 Abralon Track Flare Potential: 7″+ (High)
RG Average: 2.52 (Medium Low) on a scale of 2.43-2.8 Very low-High Break Point
RG Differential: .048 (Medium) on a scale of .000-.080 Low-High Flare
Recommended Lane Conditions: Medium-Heavy Oil
In looking at their product line, Roto grip felt that they were missing the sizzle in their mid price line of equipment. The Illusion and Grand Illusion have proven to be outstanding performers, but still not to the standards they would like.
They looked back at what they have had success with and also asked many of their staff members and loyal Kingdom members what they would like to see. The unanimous decision was the return of the Silver Streak™ line of performance balls. The mid-rg and higher differential product was one of the best sellers ever from Roto Grip®. The key element to that success was the Rotary™ core. 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…
Factory Finish: 1500 Polished Flare Potential: 5+ Inches
Lane Condition: Medium Oil
Cover Stock: Ultra Vision™ Pearl Reactive
Weight Block: Rotary™ Core Color: Royal Blue/Silver
D-Scale: 73 – 75
In looking at their product line, Roto grip felt that they were missing the sizzle in their mid price line of equipment. The Illusion and Grand Illusion have proven to be outstanding performers, but still not to the standards they would like.
They looked back at what they have had success with and also asked many of their staff members and loyal Kingdom members what they would like to see. The unanimous decision was the return of the Silver Streak™ line of performance balls. The mid-rg and higher differential product was one of the best sellers ever from Roto Grip®. The key element to that success was the Rotary™ core. 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…
Factory Finish: 1500 Polished Flare Potential: 5+ Inches
Lane Condition: Medium – Heavy Oil
Cover Stock: Ultra Vision™ Solid Reactive
Weight Block: Rotary™ Core Color: Neon Green / Black
D-Scale: 73 – 75
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.
