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Roto Grip Neptune Pro Pin 
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Neptune Pro Pin Specs

Product ID 5106 Brand Roto Grip
Perfect Scale 148.9 RG 2.610
Finish Polished Lane Condition Medium
Coverstock Reactive Resin Ball Quality First Quality
Factory Finish 1500 polished Coverstock Name Sure Grip IIâ„¢ Pearl Reactive
Core Name Orbiter IIâ„¢ Core Differential 0.018
Durometer 75-78 Rex D-scale Flare Potential 2" (Low)
Release Date 04/20/2007    
Originally Sold For: $59.99

This product (5106) is not available


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Through the haze and mist the next planet appears in the distant horizon. The icy blue planet of Neptune is the most distant planet in the Roto Grip¦reg; solar system.

The newly designed Orbiter II core with an RG of 2.61 and a differential of .018 was developed to spin smoother and more even along its rotational axis while delivering gravitational shattering pin action.

The Sure Grip II pearlized reactive coverstock is the perfect mantle for creating less friction with the atmosphere while traveling along its orbital path.

Once again Roto Grip delivers you the ultimate in price versus performance with its newest planet series ball.


ROTO GRIP's "PRO PIN" technology is taking layouts and ball reaction to the extreme. Once only used on the Professional Tour for condition specific drilling's, these balls are now being made available in limited quantities to the general bowling public.


Why? As the requests, requirements, and styles of today's bowler changes to address new lane conditions and patterns, STORM is answering by providing and packaging these items separately from the standard first run items due to their unique nature and value.


ROTO GRIP "PRO PIN" bowling balls are:


  1. All first quality ROTO GRIP bowling balls

  2. Manufactured with the same high quality standards as all other ROTO GRIP products

  3. Manufactured with the highest integrity

  4. Made with the same high quality materials as all other ROTO GRIP products

  5. Great for specialized layouts and drilling options

  6. Potential for enhancing dynamic use of core position

  7. Meet all A.B.C., U.S.B.C. and P.B.A. regulations


ROTO GRIP "PRO PIN" bowling balls are first quality bowling balls with pin distances over 5" from the center of gravity and top weight between 2 and 4 ounces. Through our testing, we have found that these balls lend themselves to a variety of drilling patterns outside the range of pins less than 5" which would require an extra hole to accomplish with standard pin and top weight specifications. Based on the desired reaction, some Pro Pin drilling's may require an extra hole for balance requirements.


Please visit your pro shop professional for assistance in determining the best layout for your style and lane conditions. If additional questions, please consult the "PRO PIN" Drilling instructions included in every box or call ROTO GRIP Technical Services at 1-800-369-4402 or email tech@stormbowling.com


By: Storm's Steve Kloempken


WIDELY USED BY ROTO GRIP PROFESSIONAL STAFFERS

BE THE FIRST AND MAYBE THE ONLY ONE TO OWN A PRO PIN
IN YOUR BOWLING CENTER TO OWN ONE OF
THE NEW PRO PIN SERIES BOWLING BALLS.

COMES WITH COMPLETE DRILLING INSTRUCTIONS
AS RECOMMENDED BY ROTO GRIP AND THEIR PRO STAFF.

Since the breakthrough of fine tuning reaction characteristics by the use of mass bias placements in the 1990's, large pin out balls have been a staple for many ROTO GRIP Pro Staffers on the professional tours. Big pin outs occur when the weight block tips to one side of the ball. The further the weight block is tipped, the more the mass is biased to one side of the ball pulling the CG away from the pin. Advantages of these balls are as follows:

-Enhanced dynamics
-Stronger preferred spin axis
-More drilling versatility
-Superior reaction characteristics
-USED ALMOST EXCLUSIVELY ON THE PROFESSIONAL BOWLING TOUR....
-Enables drillers to use larger extra holes increasing flare potential and ball reaction.

Bowlingball.com Ball Reaction Video Preview