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Author Topic: Grenade  (Read 19533 times)

admin

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Grenade
« on: December 31, 1969, 06:00:00 PM »
- Coverstock: Retrothane
- Weight Block:Photon Core (14-16)
- Ball Color: Navy Blue All colors do vary somewhat from the picture shown.
- 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
- A few tiny pit holes in the cover stock of the ball are normal
- Description: 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.
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RG850SS

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Re: Grenade
« Reply #16 on: August 24, 2010, 11:42:22 AM »
A Ball for the Dryer/Lighter Conditions/Shorter Patterns.  A must ball for your tournament arsenal.  On the shorter patterns reads the lands without over reacting.  Smooth and Predictable.
--------------------
J. M. "Jocko" Mangin
Amatuer Roto Grip Staff

















                                     

















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cmsubowler

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Re: Grenade
« Reply #17 on: October 12, 2010, 01:37:20 PM »
Retrothane coverstock is a hit.  The grenade is a great ball for lighter oil patterns and dryer areas to the outside part of the lane.  The photon core that has been so successful in the Dark Star and Riot is exactly what the coverstock  needed to excel in this newly reintroduced urethane market.  It allows the ball to drive through the pins and maintain its entry angle even after deflection occurs from the pins.  Entry angle is still created from playing a more outside line and the balls breakpoint is more towards the middle of the lane (30 to 35 foot mark)

This ball takes extremely well to surface changes allowing for players of many styles to enjoy.  Anyone who wants to play up the boards and near the outside part of the lane as it starts to breakdown will enjoy using this ball most.  Players with a higher rev rate will enjoy the controllable motion of this urethane cover and also the power created by the photon core.  Whether or not your using this ball as your spare of dry lane ball, you will love the predictable move and controllable motion.  
http://www.youtube.com/watch?v=7ihCGi1OG18
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mr ed 2u

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Re: Grenade
« Reply #18 on: October 13, 2010, 03:30:37 AM »
Drilled this ball with a stand by drill for me 4 1/2 x 3 1/2 pin under fingers.
This ball does what it is advertised to do. It is very controllable on drier lanes. With the core carry will not be a problem. IT is a great mix of old school and new era. A must for any tournament bowler or any on that needs extra control on drier or short patterns
--------------------
Ed Riffle
 Roto Grip Advisory Staff
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Ed Riffle
 Roto Grip Advisory Staff

Juggernaut

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  • Former good bowler, now 3 games a week house hack.
Re: Grenade
« Reply #19 on: March 04, 2011, 02:33:54 PM »
LANE CONDITION






Length: 40ft, lightly buffed to 45ft

 

Volume:light/medium


Type (THS, Sport Pattern etc):house shot


 



COMMENTS




Likes: Just as stated, this ball is for lighter conditions and situations where control of the pocket is at a premium.
I drilled this one with the pin above the bridge, and the cg just above the midline, kicked out enough to put the virtual MB 2 inches right of my thumbhole towards the VAL. This left the pin around 4 1/2 from my pap and the cg about 2 inches from my pap. Translated into dual angle terminology, this would be a 40 X 4 1/2 X 60. Also put an x-hole on the midline, 2 inches past the val to increase the dynamics slightly.

 

 All I can say is smooth, smooth, SMOOTH! Ball never over-reacts, but the volume here is almost too much, so accuracy is at a premium, but the carry percentage is high. Get this one close to the pocket in a roll and it just works.



Dislikes: Ball is good, but I think it could've used a stronger weightblock to compliment the urethane cover better for todays heavier lane oil conditions.
 I realize this ball was designed to be used when the lanes are dry/drier, but it would really be nice to have this much control with a bit more power, that's what urethane is for, right?



 


PICTURES AND/OR VIDEOS

 

 

 


"Yeah, I throw AMF. What's it to ya"?



 



 
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Learn to laugh, and love, and smile, cause we’re only here for a little while.

I am batman

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Re: Grenade
« Reply #20 on: March 28, 2011, 08:03:47 AM »
LANE CONDITION






Length: 39ft white#2

 

Volume:light-med


Type (THS, Sport Pattern etc): house shot


 COMMENTS





Likes: Smooth, hits like a feight train. Exceptional carry.


Dislikes: Didn't get one sooner, other than that, no dislikes.

 


 

 Ok, so I buy way too much stuff on e-bay. But when I found a two ball package with a grenade and a golden globe, who could resist? I plugged both balls and redrilled them to my span/pitches, (virtually same holes), keeping the drilling intact. The grenade is basically label leverage with thumb weight. I added a weighthole in the thumb positive quadrant to raise the bowtie. with no prior practice, went out to the lanes and bowled position round.

First game: 237. Second: 279, third: 267 for a 783 series/261 avg. Yeah, we took first. My highest series with urethane ever. What is your excuse for not having a urethane ball in the bag?

 


I am Batman
"Where does he get all of these wonderful balls?"
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fizzmoe300

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Re: Grenade
« Reply #21 on: September 19, 2011, 09:58:10 AM »
LANE CONDITION






Length:38'

 

Volume:


Type (THS, Sport Pattern etc):ths


 



COMMENTS





Likes:in 1990, worked for roto-grip and vinny yettito. at that time we were reintroducing the black grenade. when roto came out with a new version, i happened to be looking for a urethane ball. well, the rest is history!!! great piece of equipment, and flares more than the original!!! thanks roto-grip!!!


Dislikes: none


 


PICTURES AND/OR VIDEOS

 

 

 


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