Education Hub  /  Bowling Ball Cores  /  Roto Grip Core Library
ROTO GRIP CORE REFERENCE

Roto Grip Bowling Ball Core Library

Every symmetric and asymmetric core Roto Grip has put into a ball, cataloged in one searchable reference. Click any core to see its specs, the balls built around it, and how it shapes ball motion on the lane.

By the BowlersMart Pro Shop Team. Last reviewed for the 2026 season. Cross-reference with the Drilling Layouts Hub guide.
AT A GLANCE
19+
Roto Grip cores cataloged
2
Core types: sym & asym
2026
Season-current archive
A to Z
Alphabetical reference
CORE BASICS

Symmetric vs Asymmetric Cores

Two core types, two different ball motion profiles. Knowing which type you are looking at changes how the ball lays out and how it moves on the lane.

UNIFORM SHAPE

Symmetric Cores

Have only a pin marker. Produce smoother, more predictable motion. Easier to control, ideal for benchmark and arsenal foundations.

Example Roto Grip models: Hustle, Rubicon, RX-1
UNEVEN SHAPE

Asymmetric Cores

Have both a pin AND a PSA (Preferential Spin Axis) marker. Generate stronger, more defined backend motion. Standard in modern flagship balls.

Example Roto Grip models: Idol, MVP, Halo

For the full breakdown of how cores work, visit the Bowling Ball Cores research hub.

THE LIBRARY

All Roto Grip Cores (A to Z)

Click any core image to see specs, photos, and the Roto Grip balls built around it.
Alt Hot Shot
Cage Core
Caliber Core
Centrum Core
chaotic Core
Defiant LRG
E.T. Core
Hotshot Core
Hustle Core
hyped Core
ikon Core
Momentous
momentous a.i.
neutron Core
Nucleus Core
Rondure Core
Roto Grip Bowling Ball Core Library – click the core to see more info
RST Core
Torpex Core
ARCHIVE

Retired Roto Grip Bowling Balls

Roto Grip balls now retired from production. Useful for arsenal research, ball-matching, and pro shop reference.

Out of stock

Roto Grip Wild Wrecker Bowling Ball

Roto Grip Exit Red Overseas Bowling Ball

Out of stock

Roto Grip Attention Power Overseas Bowling Ball

Out of stock

Roto Grip X-Cell Master Overseas Bowling Ball

Out of stock

Roto Grip X-Cell Tour Overseas Bowling Ball

Roto Grip Hustler Red Pearl Overseas X-Comp / Blem Bowling Ball

Out of stock

Roto Grip Hyped Super Pearl Overseas Bowling Ball

Out of stock

Roto Grip Attention Line Overseas Bowling Ball

Roto Grip Hustler Red Pearl Overseas Bowling Ball

Out of stock

Roto Grip Gem Crystal Overseas Bowling Ball

Out of stock

Roto Grip Attention Spot Overseas Bowling Ball

Out of stock

Roto Grip Optimum Idol Pearl Bowling Ball

Out of stock

Roto Grip RST X-2 Pro Overseas Bowling Ball

Out of stock

Roto Grip RST X-4 Overseas Bowling Ball

Out of stock

Roto Grip X-Cell Bowling Ball

Out of stock

Roto Grip Idol MPW Overseas Bowling Ball

Out of stock

Roto Grip Hustle B/R/Y Bowling Ball

Out of stock

Roto Grip Optimum Idol Bowling Ball

Roto Grip Attention Star Bowling Ball

Out of stock

Roto Grip RST Crash Overseas Bowling Ball

Roto Grip Hustler Deep Purple Overseas Bowling Ball

Out of stock

Roto Grip RST X-3 Pro Overseas Bowling Ball

Out of stock

Roto Grip TNT Infused Bowling Ball

Out of stock

Roto Grip Magic Gem Bowling Ball

Out of stock

Roto Grip Idol Mega Pink Overseas Bowling Ball

Out of stock

Roto Grip Hustle RN Overseas Bowling Ball

Out of stock

Roto Grip Tour Dynam-X Bowling Ball

Out of stock

Roto Grip Clone Bowling Ball

Out of stock

Roto Grip Rubicon Extreme Overseas Bowling Ball

Out of stock

Roto Grip Wild Streak Tour/U Overseas Bowling Ball

Out of stock

Roto Grip Idol Ultra Black Overseas Bowling Ball

Out of stock

Roto Grip Gem Hybrid Overseas Bowling Ball

Out of stock

Roto Grip Hustle Chilli Overseas Bowling Ball

Out of stock

Roto Grip Hyper Attention Overseas Bowling Ball

Out of stock

Roto Grip Purple Gem Overseas Bowling Ball

Out of stock

Roto Grip Gem Garnet Overseas Bowling Ball

Out of stock

Roto Grip Retro RG Spare Bowling Ball

Out of stock

Roto Grip Attention M Overseas Bowling Ball

Out of stock

Roto Grip Duo Bowling Ball

Out of stock

Roto Grip TNT Bowling Ball

Out of stock

Roto Grip Hustle BMS Overseas Bowling Ball

Out of stock

Roto Grip Gem Pearl Overseas Bowling Ball

Out of stock

Roto Grip RST X-3 Squad Overseas Bowling Ball

Out of stock

Roto Grip Idol Gold Pearl Bowling Ball

Out of stock

Roto Grip Exotic Gem Bowling Ball

Out of stock

Roto Grip RST X-3 Bowling Ball

Out of stock

Roto Grip Idol Cosmos Bowling Ball

Out of stock

Roto Grip Hyped Solid Bowling Ball

Out of stock

Roto Grip RST X-2 Squad Overseas Bowling Ball

Out of stock

Roto Grip Hustle Forest Overseas Bowling Ball

Out of stock

Roto Grip Hustle Lime Overseas Bowling Ball

Out of stock

Roto Grip RG Spare Tire Clear Poly Bowling Ball

Out of stock

Roto Grip Rubicon Attack Overseas Bowling Ball

Out of stock

Roto Grip Rubicon UC3 Trax Overseas Bowling Ball

Out of stock

Roto Grip Halo Burn Overseas Bowling Ball

Out of stock

Roto Grip Halo Star Overseas Bowling Ball

Out of stock

Roto Grip Hyper Cell Fused Bowling Ball

Out of stock

Roto Grip Rubicon EX Overseas Bowling Ball

Out of stock

Roto Grip Hyper Cell Motion Overseas Bowling Ball

Out of stock

Roto Grip Huge Cell Overseas Bowling Ball

Out of stock

Roto Grip Pro Defiant Overseas Bowling Ball

Out of stock

Roto Grip Throne LTD Overseas Bowling Ball

Out of stock

Roto Grip Top Winner Overseas Bowling Ball

Out of stock

Roto Grip Idol Purple Overseas Bowling Ball

Out of stock

Roto Grip Torch It Overseas Bowling Ball

Out of stock

Roto Grip Attention Scarlet Overseas Bowling Ball

Out of stock

Roto Grip Rubicon Booster Overseas Bowling Ball

Out of stock

Roto Grip Idol Splash Overseas Bowling Ball

Out of stock

Roto Grip Gem Bowling Ball

Out of stock

Roto Grip Attention S Overseas Bowling Ball

Out of stock

Roto Grip Idol Helios Bowling Ball

Out of stock

Roto Grip Rubicon UC3 Bowling Ball

Out of stock

Roto Grip RST X-2 Bowling Ball

Out of stock

Roto Grip Hustle Wine Bowling Ball

Out of stock

Roto Grip Hustle Camo Bowling Ball

Out of stock

Roto Grip Hyped Pearl Bowling Ball

Out of stock

Roto Grip Hyped Hybrid Bowling Ball

Out of stock

Roto Grip UFO Alert Bowling Ball

Out of stock

Roto Grip RST X-1 Squad Overseas Bowling Ball

Out of stock

Roto Grip Attention T Overseas Bowling Ball

Out of stock

Roto Grip Attention Grip Overseas Bowling Ball

Out of stock

Roto Grip Hustle Hot Overseas Bowling Ball

Out of stock

Roto Grip Idol Lime Green Overseas Bowling Ball

Out of stock

Roto Grip Rubicon UC2 Bowling Ball

Out of stock

Roto Grip UFO 2 Overseas Bowling Ball

Out of stock

Roto Grip Rubicon GT Overseas Bowling Ball

Out of stock

Roto Grip Idol Synergy Bowling Ball

Out of stock

Roto Grip RST X-1 Bowling Ball

Out of stock

Roto Grip UFO Pearl Overseas Bowling Ball

Out of stock

Roto Grip Rubicon Bowling Ball

Out of stock

Roto Grip Idol Red Overseas Bowling Ball

Out of stock

Roto Grip MVP Attitude Bowling Ball

Out of stock

Roto Grip Halo Action Overseas Bowling Ball

Out of stock

Roto Grip Halo Effect Overseas Bowling Ball

Out of stock

Roto Grip UFO Bowling Ball Sale Limited Weights

Out of stock

Roto Grip Hustle Sky Overseas Bowling Ball

Out of stock

Roto Grip Hustle Royal Aqua Purple Bowling Ball

Out of stock

Roto Grip Halo Vision Bowling Ball Sale Limited Weights

Out of stock

Roto Grip Nuclear Cell Bowling Ball

Out of stock

Roto Grip UFO Bowling Ball

Out of stock

Roto Grip RG Clear Poly Bowling Ball

Out of stock

Roto Grip MVP Pearl Bowling Ball

Out of stock

Roto Grip Hustle Metal Overseas Bowling Ball

Out of stock

Roto Grip Idol Black Pearl Overseas Bowling Ball

Out of stock

Roto Grip Wild Streak Bowling Ball

Out of stock

Roto Grip Hustle Up Overseas Bowling Ball

Out of stock

Roto Grip Attention Overseas Bowling Ball

Out of stock

Roto Grip Squad RG Clear Poly Bowling Ball

Out of stock

Roto Grip Idol Pro Bowling Ball

Out of stock

Roto Grip Halo Vision Bowling Ball

Out of stock

Roto Grip Hustle HSB Silver Black Bowling Ball

Out of stock

Roto Grip Hustle Au Bowling Ball

Out of stock

Roto Grip Hustle 3TP Bowling Ball

Out of stock

Roto Grip Halo Pearl Bowling Ball

Out of stock

Roto Grip MVP Bowling Ball

Out of stock

Roto Grip Idol Pearl Bowling Ball

Out of stock

Roto Grip Winner Bowling Ball

Out of stock

Roto Grip Halo Bowling Ball

Out of stock

Roto Grip Idol Bowling Ball

Out of stock

Roto Grip Dare Devil Danger Bowling Ball

Pair This With

DRILLING

Drilling Layouts Hub

Pair any Roto Grip core with the right layout from our complete drilling layouts hub.

View drilling guide →

RESEARCH

Bowling Ball Cores Hub

The full cores research center. RG, differential, mass bias, and how core type shapes ball motion.

Open cores hub →

SHOP

Roto Grip Bowling Balls

Browse every current Roto Grip ball in stock at BowlersMart.

Shop Roto Grip balls →

NEXT STEP

Know the core you want? Bring it to a pro shop.

Roto Grip cores reach their full potential when paired with the right layout for your PAP and rev rate. Find a BowlersMart pro shop near you for a certified fitting.