Roto Grip Wicked Gremlin Bowling Ball Review: Rondure MaxD Core + G-R1 Solid Coverstock

By Brian Halstrom, BowlersMart Editorial Team. Specs on this page are verified against Roto Grip’s official Wicked Gremlin release data.

The original Gremlin became a superstar on the strength of its maxed-out core densities. The Roto Grip Wicked Gremlin takes that iconic Gremlin Series to a more aggressive level, pairing the same proven engine with a refined, nano-free solid cover built for controlled heavy-oil traction.

The Wicked Gremlin keeps the asymmetric Rondure MaxD Core, the high-density block that powered the original Gremlin, and wraps it in the new G-R1 Solid Reactive coverstock at a 2000-grit finish, in a bold Citrine, Red, and Purple cosmetic. The result is a grippy, high-friction footprint without the over-aggressive bite of its predecessor: more mid-lane traction with a smoother, more continuous transition through the backend. It is the high-performance HP3 piece in Roto Grip’s lineup. The Wicked Gremlin is part of one of the deepest new-release seasons in years, which you can see in our 2026 new bowling balls roundup.

The Technology Behind the Wicked Gremlin

Roto Grip built the Wicked Gremlin for controlled traction on medium-heavy oil. Specifically, the asymmetric Rondure MaxD core uses maxed-out densities to read the mid-lane strongly and keep driving, while the new G-R1 Solid cover delivers a high-friction, grippy footprint engineered as a refined, nano-free alternative to the more aggressive V-R1. As a result, you get a predictable mid-lane read and a smooth, continuous transition rather than an over-aggressive, jumpy bite, which is exactly what makes it handle fresh house shots and transitioning tournament conditions wickedly well. The full per-weight specs are listed below.

Complete Ball Specifications

RG, Differential, and Intermediate Differential by Weight

Weight	RG	Differential	Intermediate Diff (MB)
16 lbs	2.50	.056	.011
15 lbs	2.50	.058	.010
14 lbs	2.54	.058	.008
13 lbs	2.57	.032	.010
12 lbs	2.59	.029	.008

Designed for ALL Styles of Bowlers

Roto Grip built the Wicked Gremlin for bowlers who face medium-heavy oil and want controlled, continuous traction. Specifically, the maxed-out Rondure MaxD asymmetric core reads the mid-lane strongly and keeps driving, while the nano-free G-R1 Solid cover grips without an over-aggressive bite. As a result, it is an outstanding choice for tournament and league bowlers who need an early-reading, controllable solid for the fresh, and a great alternative when stronger asymmetrics are hooking too soon.

Ideal Lane Conditions

The Wicked Gremlin is particularly effective when:

• Medium-heavy oil where you need strong, controllable mid-lane traction
• Fresh house shots that reward an early, predictable read
• Transitioning tournament patterns where control matters as much as hook
• When your aggressive asymmetrics are reading too early or over-hooking
• Higher-rev and medium-speed bowlers who want continuous, controlled motion

Player Style Fit

• Tournament Players: An early-reading, controllable heavy-oil solid that handles fresh and transitioning patterns with continuous drive
• Higher-Rev Bowlers: The maxed-out Rondure MaxD core rewards revs with strong flare and a smooth, hard-driving backend
• League Bowlers: A strong benchmark solid for medium-heavy house volume that reads the lane the same way shot after shot
• Control-Minded Stylists: The nano-free G-R1 cover grips without jumping, giving traction with a controllable, continuous shape

Where the Wicked Gremlin Fits in Your Roto Grip Arsenal

In the Roto Grip lineup, the Wicked Gremlin is the controlled heavy-oil solid you throw on the fresh. Where an aggressive asymmetric can read too early and over-hook, the Wicked Gremlin grips strongly but transitions smoothly, keeping its motion continuous. It pairs naturally below your strongest asymmetric and above a pearl, giving you a benchmark traction piece for medium-heavy volume.

Arsenal Strategy Guide

Heavy Oil / Controlled Solid Traction: Wicked Gremlin (Rondure MaxD core, G-R1 Solid) ← Perfect middle ground

Medium Oil / Benchmark Read: Medium-oil benchmarks and hybrids

Light Oil / Length and Spares: Pearls and urethane for drier backends

Real-World Arsenal Scenarios

Tournament Player: On a fresh, medium-heavy pattern, the Wicked Gremlin gives you an early, strong read that lets you play with control. Its smooth, continuous transition keeps you in the pocket as the lanes start to break down.

Higher-Rev Bowler: If you generate revs and your strongest asymmetric is hooking too soon, step to the Wicked Gremlin. The G-R1 Solid grips without the over-aggressive bite, so you get traction and continuation instead of a jumpy backend.

League Bowler: The Wicked Gremlin is a dependable benchmark for medium-heavy house volume. It reads the mid-lane the same way every time and keeps driving through the pins, making it the first ball out of the bag on the fresh.

To maximize the performance and longevity of your Wicked Gremlin, follow these maintenance guidelines based on Roto Grip’s official recommendations:

Pre-Order Information & BowlersMart Benefits

The Roto Grip Wicked Gremlin officially releases on August 7, 2026. As one of the most anticipated releases of the year, we expect strong demand for this long-awaited piece.

Frequently Asked Questions

About the Roto Grip Wicked Gremlin

What is the Roto Grip Wicked Gremlin and what makes it special?

The Wicked Gremlin takes the iconic Gremlin Series to a more aggressive level. It keeps the asymmetric Rondure MaxD core, the maxed-out weight block that made the original Gremlin a superstar, and pairs it with the new G-R1 Solid Reactive cover. The G-R1 shell grips medium-heavy oil with a high-friction footprint but, as a refined nano-free alternative to V-R1, it reads without the over-aggressive bite of its predecessor, giving a predictable mid-lane read and a smooth, continuous backend. It is the high-performance HP3 piece in Roto Grip’s lineup, releasing August 7, 2026 at $174.95.

Is the Wicked Gremlin a strong hook ball or a control ball?

It is both, by design. The maxed-out Rondure MaxD core carries a strong .058 differential at 15 lb, which produces heavy flare and a hard-driving motion on heavy oil. But the nano-free G-R1 Solid cover grips strongly without an over-aggressive bite, so the reaction is controllable and continuous rather than jumpy. The result is heavy-oil traction with a smooth, predictable transition, ideal for the fresh and for when stronger asymmetrics are hooking too soon.

Specs and Core Technology

What are the Wicked Gremlin specs?

At 15 lb the asymmetric Rondure MaxD core measures RG 2.50, Differential .058, and an intermediate differential (mass bias) of .010, paired with the G-R1 Solid Reactive coverstock at a 2000-grit Abralon factory finish. Roto Grip rates it for medium to heavy oil with a high flare potential, in a Citrine, Red, and Purple cosmetic. It is a High Performance HP3 release available in 12 to 16 lb at $174.95.

What weight and layout should I choose for the Wicked Gremlin?

Roto Grip offers the Wicked Gremlin in 12 to 16 lb, and most competitive bowlers choose 14 to 16 lb. Because the Rondure MaxD core is asymmetric, layout has a strong influence on how early and how strongly the ball reads, and your pro shop can position the pin and mass bias to lean the reaction earlier or more angular. Work with your driller to match the layout to your PAP, speed, and rev rate.

How is the Wicked Gremlin different from the original Gremlin?

Both use the same maxed-out Rondure MaxD core, so they share the strong flare and continuation that made the line popular. The difference is the cover. The Wicked Gremlin uses the new nano-free G-R1 Solid, which grips medium-heavy oil with a high-friction footprint but reads more controllably than the original’s more aggressive cover. The result is a smoother, more continuous transition, so the Wicked Gremlin handles the fresh and transition with control rather than an over-aggressive bite.

Is the Wicked Gremlin USBC approved?

Yes. The Roto Grip Wicked Gremlin meets all USBC specifications and is approved for sanctioned league and tournament competition.

Ball Care and Buying at BowlersMart

How should I maintain the Wicked Gremlin?

Wipe the cover with an approved reactive ball cleaner after every session, and deep clean it periodically. Because the G-R1 is a strong solid that absorbs oil, keeping it clean is what preserves the early read and strong traction. The 2000-grit surface is tunable: keep it fresh for maximum traction on heavier oil, or polish for a bit more length when the volume drops. Have surface adjustments done at your pro shop for an even finish.

Can I earn Striking Rewards points on this purchase?

Absolutely. Roto Grip Wicked Gremlin purchases qualify for our Striking Rewards loyalty program. Earn points on your purchase and unlock exclusive member benefits. Not a member yet? Joining is free.

Final Verdict: Controlled Heavy-Oil Traction, the Next Evolution of Chaos

The Roto Grip Wicked Gremlin pairs the maxed-out Rondure MaxD core with the new nano-free G-R1 Solid cover to do one thing exceptionally well: grip medium-heavy oil with strong, controlled, continuous motion. It reads the mid-lane early and keeps driving, but without the over-aggressive bite of its predecessor.

If you want an early-reading benchmark solid for the fresh, or a controllable alternative for when your strongest asymmetrics start hooking too soon, the Wicked Gremlin belongs in your bag. It handles those medium-heavy conditions wickedly.

Releasing August 7, 2026 at $174.95. The Wicked Gremlin is available to pre-order at BowlersMart with always-free shipping, 60-day returns, and Striking Rewards points on every purchase.

See the Roto Grip Wicked Gremlin at BowlersMart