Roto Grip

Roto Grip Clone Bowling Ball

(40 reviews) Write a Review
  • Roto Grip Clone Bowling Ball
  • Roto Grip Clone Bowling Ball
  • Roto Grip Clone Bowling Ball
MSRP: $242.95
— You save $43.00


Roto Grip Clone Bowling Ball

  • Color: Alien/Deep Mist/Cyber Grape
  • Coverstock: OptiTrax Solid Reactive
  • Weight Block: Cloned ET Core
  • Factory Finish: Reacta Gloss
  • Flare Potential: High
  • Radius of Gyration (RG): 16lbs - 2.50; 15lbs - 2.51; 14lbs - 2.53
  • Differential (Diff): 16lbs - 0.054; 15lbs - 0.056; 14lbs - 0.056
  • Intermediate Differential (Diff): 16lbs - 0.016; 15lbs - 0.016; 14lbs - 0.016
  • Fragrance: N/A

Additional product information:

CLONE - "a thing that duplicates, imitates, or closely resembles another in appearance, function, performance or style." And well, since the last version of this core part was unwillingly abducted, we felt it was our responsibility to the entire bowling galaxy to "clone" it and mix in a few upgrades & performance enhancing tweaks that bowlers of all skill levels on planet earth will benefit from. And just as before, the reasons that led to the creation of the original E.T. Core that featured out of this world core technology better known as “equalizer cavities” to emulate the use of a balance hole, the CLONED E.T. Core also does that, but MORE. Yes, you read that correctly, the same.

View AllClose

Additional Information

Lane Condition:
Factory Finish:
Reacta Gloss
Core Type:
Solid Reactive
View AllClose

40 Reviews

  • 5
    Roto Grip Clone review by Chris Pollentier

    Posted by Chris Pollentier on Nov 20th 2023

    Roto Grip Clone Coverstock: OptiTrax Solid Reactive Finish: Reacta Gloss Core: Cloned E.T. Core RG: 2.51, Diff: 0.056, PSA: 0.016 (15 lb.) VLS Layout: 4 x 4-3/8 x 2 Dual Angle Layout: 50 x 4 x 35 PAP: 5 3/16” right x 5/8” up Rev rate: 400 rpm Average speed: 16.5 mph Location: Prairie Lanes, Sun Prairie WI Pattern: Medium volume THS The Roto Grip Clone takes the E.T. Core found in the UFO and UFO Alert and tweaks it slightly to create a stronger version that provide little more midlane roll. It also features the new OptiTrax solid reactive coverstock that comes polished from the factory with the Reacta Gloss finish, which helps keeps the ball clean up front with a continuous backend motion. All told, the design intent for the Clone was to create versatile ball with a consistent and predictable motion from shot-to-shot. Fresh out of the box and off the drill press, the Clone has easy length thanks to the shiny Reacta Gloss polish finish, and it’s certainly retains energy to be strong off friction. However, as is often the case (at least for me), the factory-polished finish tended to make the Clone a bit too over/under for my liking. So, I scuffed the surface with an older 2000-grit Abralon pad just to knock some of the shine off and get a few scratches in the cover – doing this brought the Clone to life! Removing some of the polish better allowed the cover and core to work together. The Clone was still clean on the front part of the lane, but with a light scuff it read the midlane much better and provided a strong and continuous backend reaction. Misses in the oil squared up to the pocked much better to help carry the pesky corner pins, and misses out didn’t jerk off the friction as hard. I see the Roto Grip Clone being a great option after the Gem or Magic Gem, and provides a little more shape on the backend compared to the Exotic Gem. The Clone will be a great option as the lanes start to go through transition because the clean cover will help keep it from reading too early and the strong core will help the ball pick up and read the midlane. The Clone will be a great ball for league bowlers and deserves a spot in the bag for competitive players as well. Chris Pollentier Storm Pro Shop Staff #StormNation #SquadRG

  • 5
    Roto Grip Clone

    Posted by Brian Watson on Nov 15th 2023

    The new ball in the RG HP4 line is the Clone. The Clone is kind of the replacement of the UFO Alert. I drilled mine standard pin up 4.5 x 5 x 2 layout. I also took a 1000 abralon pad and added Step 2 to the cover. I have bowled with the clone on a couple sport patterns and house. The Clone is a polished solid and with a strong asymmetrical core. For me the Clone is controllable and pretty good on the sport patterns. It allowed me to keep the ball in play and on line for the most part. The backend reaction is a smooth arcing motion for me. Think a stronger TNT roll, or a cleaner more tip down lane than a Exotic Gem. For the house shot it was just okay for me and my roll, it didn't give me a lot of miss room as you normally have on a house shot. For my game it is kind a of niche ball, when it matches up its real good and when it doesn't there is just better choices for me. For the sport patterns, it was a good ball to go to when the reality's and gem's start to bog down a little. But is definately stronger than say a Phaze II or Summit. I can see the guys that play a little straighter through the fronts really like the Clone. Good Addition to the RG line! Brian Watson PAP 3 7/8 up 1 1/4 MPH - 16-17 TILT - 17 RPM - 400 Storm Pro Shop Staff

  • 5
    Roto Grip The Clone review by Ethan Fiore

    Posted by Ethan Fiore on Nov 15th 2023

    The Clone from Roto Grip was intended to be a remake of the UFO Alert but, it has passed its expectations. The Clone ET core and Optitrax cover is a great combo for a lot of down lane hook but once you get left, it becomes very tame and easy to keep in play. All around good ball! Ethan Fiore ⭐PBA Member⭐Roto Grip Staff⭐CoolWick Staff⭐Tournament Director⭐ Right 2 Handed Rev Rate: 500 Speed: 17.5 PAP: 4 1/8 up 7/8

  • 4
    Cleaner but still strong asym solid option

    Posted by Johnny Quach on Nov 9th 2023

    Seems contradictory but thats what i had it at. A little cleaner than my reality and gem, but still solid so it dug in the oil really well and wasnt very hard off the spot, even with the reacta gloss finish it comes with. When i hit it with some surface is when this ball truly shined. It stored a little more energy than the big asym solids, so when my reality or gem started to flat 10, the clone still kept going and carried. Still fit that spot in the bag so if you were taking 6 or 9, you probably wouldnt take both clone and reality/gem, but it was good if you wanted a tiny bit cleaner option than those two. Two hander, 450 revs, 50x5x50 layout, bowls house shots and PBA regionals Check out our Youtube video and channel: Striking Results Pro Shop

  • 5
    Roto Grip Clone Ball Review by PJ Haggerty

    Posted by PJ Haggerty on Nov 7th 2023

    The Roto Grip Clone is the newest addition to the HP4 line and it’s a perfect addition to the line. With having so much success with the UFO Alert a few years ago, it only makes sense that the Clone would be a perfect replacement. My initial reaction after drilling it was “this is a revamped UFO Alert and will be in my bag at almost all times”. So far, that’s been true. Seeing several types of surfaces, patterns, and crossing with different styles, the Clone has been a staple in my bag. The Clone is very similar to the UFO Alert except for a few minor tweaks. The core was adjusted a small amount which lowered the RG and increased differential. This just gives the Clone “more” of everything. More flare, hook, and power. It’s been a perfect compliment to my DNA, Exotic Gem, and Tour Dynamix. I’ve drilled one so far and really like it. I put the pin under my bridge, shifted the CG, and kicked the mass bias a decent amount. The numbers come out as 5 x 3.5 x 55. The surface has been left alone but I’ve had the most success when the pattern blends and I need a ball to still read the front of the lane, but not be extremely quick. Because the RG and differential are strong, I could see several types of players having success with the Clone. Another great addition to arsenals came out of Utah. Go drill one!

  • 5
    Roto Grip Clone

    Posted by Michael LeViner on Nov 6th 2023

    Roto Grip Clone Layout: 55 x 4 ½ x 35 When I heard that the Clone was going to be a polished solid, I got excited because the last high-end polished solid that Roto Grip had was the Eternal Cell, which is one of my favorite balls of all time. Luckily, the Clone lives up to the lofty standards! It has more overall hook and more backend motion than I remember the Eternal Cell having, but it is overall still very reminiscent of that ball. Even though it is a solid, it is very clean through the heads due to the polish, but it has a strong down-lane kick that I will call a “strong arc; it is not flippy, but it is not excessively smooth, either. This reaction is not made for fresh, but can easily be the 2nd or 3rd ball in the bag and cover anything from medium-heavy to medium-light conditions.

  • 4
    RG Clone

    Posted by Keith C on Nov 1st 2023

    Right Hand Tweener Ball Speed: 16/17 of hand Revrate: 325-350 Test lane: Length: 42' Pattern: THS The Invasion Begins Now! Starting Specs: Coverstock: OptiTrax Solid Reactive Weight Block: Cloned ET Core Factory Finish: Reacta Gloss Flare Potential: High Radius of Gyration (RG):15lbs - 2.51 Differential (Diff): 15lbs - 0.056 Intermediate Diff: 15lbs - 0.016 Designed to resemble the popular UFO Alert we mixed in a few upgrades & performance enhancing tweaks for the bowlers of all skill levels. Drilled mine Pin Down 3 3/4 X 4 X 3 5/8 VLS like my Alert and RST-X2. Out of box my initial reaction was so/so with the continuation down lane. So I took off the Reacta Gloss with a 4000 pad no polish like my TNT. Now I have an asym with as much punch and a 1-2 combination at league or tournaments which can blend out a pattern. It's shape is easy to read for me and with better control of the transition. I have had success playing all parts of the lanes in particular my comfort zones. I was able to open up my angles when needed on a 44' sport pattern as energy retention was maximized. Dominate cover with a forgiving core equals better pin carry. More like a Duo Plus if you think about it. For the league bowlers this is a great choice for your 1 or 2 ball bowler. For the competitive bowler it's another ball in your arsenal when you need that smoother asymmetrical solid. Simply put, this version is the next generation all bowlers need in the bag. Keith Cordy 900 Global Staff Ambassador #GoGlobal #SquadRG #stormnation #12InARowProShop #CustomThumbzProshop #JoPoGrips

  • 5
    Roto Grip Clone Review by S.McIntire

    Posted by Sandra McIntire on Oct 31st 2023

    I am a higher speed, rev challenged 220-250ish, high tilt, high rotation, and super low track player. I drilled my Roto Grip Clone 25 x 5 3/8 x15 and my axis point is 3 ¼ right and 7/8 up. The Roto Grip Clone is a big asymmetric solid reactive piece that I really like to use on medium volume patterns. The low Rg and High diff gives this ball high flare potential. When I need something to get longer down lane and still be strong on the backend this is the ball. My YouTube video of the ball can be found at:

  • 5
    Clone Review by Luke Rosdahl

    Posted by Luke Rosdahl on Oct 24th 2023

    User Specs: Left handed, 375 rev rate, 17mph speed, 45 degree angle of rotation, 7 degrees tilt Layout: 4 ¾ x 3 ½ x 2 ½ The Clone is a new asymmetric ball in Roto Grip’s HP4 line. It features the new OptiTrax solid cover which is medium strength. The core is the Cloned E.T. core which is modified from the original E.T. core in the UFO and UFO Alert, and it comes in at a 2.51 RG, .054 differential, and a .016 intermediate differential in 15 pounds. On paper it’s a slightly stronger solid version of the UFO Alert, but this cover is a decided step down in strength from the MicroTrax on the UFO and on the balls in the Gem line. The box surface is Reacta Gloss, but I resurfaced mine down to 1000 grit on a resurfacing machine and then finished it with a light application of Storm’s Step 2 compound. The result was underwhelming. The ball is significantly earlier and smoother than was expected, and with the shine, it was lazy and flat, so I decided to take a 2000 pad to it by hand. This completely changed the reaction, the surface now better fit what the core wanted to do and I got an incredibly controllable and forgiving reaction. Early rolling without being early hooking, and an even, continuous, climbing arc on the backend. The Clone feels like an asymmetric version of the TNT. It’s got the same slow, heavy roll, but for me, the Clone has the torque that the TNT lacks to give it more conviction and presence at the pocket. It works best for me on tougher conditions, but it’s surprisingly effective on regular league conditions because remember, the cover is clean enough to where it’s still able to be in play on lighter conditions. It’s a step down from the Gem, a step sideways from the TNT, and a step up from the Tour Dynam-X in my opinion, and for me it’s one of the best sport condition balls out there right now.

  • 5

    Posted by Gil B on Oct 21st 2023

    Roto Grip Clone the newest in the HP4 Line. Features the Clone Et core and the new Optitrax solid cover. Since I miss my UFO Alert so much I drilled to with my favorite pin down layout to replace my baby. Out of the box for me it did show some similarities to my UFO Alert. For me it got to far down lane for me and was coming around the head pin too much. Not an issue hit it with a 2000 pad by hand and took a little shine off the ball. OOOH I am in love. This ball def takes well to surface change. This change seemed to make the ball pick up in the right spot and control the reaction downlane. Loving the Clone. UFO ALERT who lol

View AllClose