Roto Grip Rockstar Bowling Ball

Versatile HP3 Solid Power for Medium-Heavy Oil

About the Rockstar

Everyone has played air guitar and heard the roar of a sold-out crowd. The Roto Grip Rockstar is the instrument that lets you make some serious noise on the lanes. After months of research and testing with players of every skill level, Roto Grip built it to give competitive and advanced bowlers a new motion for medium to heavy oil.

The Rockstar pairs the symmetric Rocker AI Core with the NanoStar Solid Reactive coverstock at a 2000-grit finish, in a bold Black and Red cosmetic. State-of-the-art cover material and weight-block design give it greater versatility on more oil conditions and lane surfaces than previous HP3 balls, strong, controllable solid power that takes the HP3 line to the next level.

Understanding the Roto Grip Rocker AI Core and Roto Grip NanoStar Solid Reactive

Roto Grip built the Rockstar for versatile, controllable power at the HP3 level. Specifically, the symmetric Rocker AI Core revs up strongly and reads the lane predictably, while the NanoStar Solid cover at a 2000-grit finish grabs the mid-lane for traction on medium to heavy oil. As a result, it delivers strong hook with a readable, repeatable shape, more versatile across modern lane surfaces than previous HP3 pieces. The full per-weight specifications are listed below.

A Symmetric Core Tuned for Strong, Readable HP3 Motion

At the heart of the Rockstar is the symmetric Rocker AI Core. At 15 lb it measures RG 2.48 and a strong .050 differential, numbers that produce heavy flare and a powerful but readable motion. As a symmetric core, it reads the lane predictably and repeats the same shape shot after shot, giving you strong hook without the layout sensitivity of an asymmetric piece.

That combination of strength and control is the point of the Rockstar. The high differential creates the flare to clear medium to heavy oil, while the symmetric shape keeps the reaction smooth and repeatable. It is a strong HP3 ball that stays easy to read, which is exactly what makes it so versatile across changing conditions.

A State-of-the-Art Solid for Traction on More Conditions

The Rockstar wraps that core in the NanoStar Solid Reactive coverstock, finished at 2000 grit. The solid cover at a sanded grit grabs the mid-lane for strong traction, and Roto Grip designed the NanoStar material to handle the wider range of oil conditions and lane surfaces that modern lane maintenance produces. It reads the front and mid-lane strongly while keeping the motion controllable.

That traction is what makes the Rockstar a true medium-to-heavy-oil HP3 piece. The NanoStar solid digs through volume, and the strong Rocker core turns that traction into powerful, readable hook. Leave it at the 2000-grit box surface for maximum traction, or polish it up at your pro shop for a cleaner, longer read when the volume drops.

Rockstar Specs

RG and differential vary by weight. Specifications provided by the manufacturer.

BowlersMart Tips: Where the Rockstar Fits in Your Roto Grip Arsenal

Shop With Confidence at BowlersMart

The Roto Grip Rockstar Bowling Ball ships free with no minimum purchase and is backed by our 60-day return policy. As an authorized Roto Grip dealer, every ball is genuine and covered by the full one-year Roto Grip warranty. Place your order before 2 PM EST and it ships the same day.

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