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Author Topic: UFO  (Read 15264 times)


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« on: January 30, 2020, 10:37:13 AM »
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Your competition wont be able to identify this object as it flies down the lane. The Roto Grip UFO high performance bowling ball introduces the E.T. Core - Equalizer Technology which has built in "Equalizer Cavities" that take the place of past weight holes to create more midlane movement as well as continuation down the lane. The MicroTrax-S20 Solid Reactive coverstock provides great traction on heavily oiled lanes.

Color: Deep Purple/Baby Blue/Neon Green
All colors do vary somewhat from the picture shown
Core: E.T. = Equalizer Technology (14-16#)
Coverstock: MicroTrax-S20 Solid Reactive
Finish: 2000-grit Pad
RG: 2.52 (for 15# ball)
Differential: 0.054 (for 15# ball)
Recommended Lane Condition: Medium/Heavy to Heavy
Hook Potential: High
Length: Middle



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« Reply #1 on: February 04, 2020, 09:47:53 AM »
UFO – Layout 5x4x1.5
PAP – 5 11/16 over and ½ up
Style – Stroker
Ball Speed – 14-15 mph
House shot condition

After watching several videos on-line from multiple styles, I decided to go ahead and order a UFO. Typically, strong cover, asymmetrical balls, don’t get a lot of use for me based upon my ball speed and rev rate. While I’m going to need some oil in the fronts, I see this ball being a bit more versatile than the typical heavy oil piece for me.
I used the ball at an HPL house I’d been struggling with the last couple times out. My Idol Pro worked for several weeks. But the pattern started to get much tighter from inside and right of 8 showed a pronounced hook. As up the back of the ball as I am and slower ball speed, I couldn’t back my hand out of it enough to play the dry.

That’s where the UFO comes into play. I was able to move inside of second arrow and still get the ball through the pins. Something I hadn’t been able to do previously. Even better was the ball allowed me some miss room down lane (into the dry) that wasn’t there. Keep in mind if I missed right early, too much ball and going through the nose. But, if I executed the game plan, it gave me a reaction and ability to play a part of the lane I previously couldn’t.

I can see multiple styles being able to utilize this ball. As always, the caveat is to know when to put it up. It’s highly unlikely you’re going to get more than 2-3 games out of it during tournament competition. That’s when you pull out the cleaner symmetrical pieces and move in anyway. A real heavy house shot, you might be able to get three games out of it depending upon your style and the other bowlers around you.


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« Reply #2 on: February 04, 2020, 01:15:19 PM »
WOW! I didn’t think I have ever seen so much hook in my life, than I did the first time I watched the new UFO go down the lane.
The UFO flat out hooks, and it will need to see plenty of oil on the lane. But if hook is what you want, then this ball is what you have been waiting for. Similar to the Halo, the UFO is a big ball that starts up quick and doesn’t stop. A very aggressive move off the friction and it just keeps going. I loved my Halo, but one of the things that I had troubles with was that while it was strong, it sometimes got lazy in the oil. What I mean is, you still had to get it to the dry boards, and it hooked plenty, but if got in the oil down the lane too far, it often wasn’t quite strong enough to make the corner. This ball is at least 5 boards stronger across the lane. I was able to miss into the big puddle of oil and this ball still was strong enough to get back and go through the pins in the correct motion.
This ball will be great on longer patterns or surfaces that are generally slicker than normal.
Jason Hollingsworth


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« Reply #3 on: February 07, 2020, 05:06:17 PM »
Ball Specs:
Roto Grip UFO
2000 MicroTrax-S20â„¢ Solid Reactive
Weight Block: E.T. Core = Equalizer Technologyâ„¢ (Asymmetrical)
Color: Deep Purple/Baby Blue/Neon Green

The UFO is definitely out of this world on hook potential. We feel this ball has the strongest and most continuous motion down lane we have seen from Roto Grip in some time. You could compare this ball to an earlier and overall more aggressive Storm Gravity Evolve. This ball is going to be great for a lot of different players… Those who have a lower rev rate and are looking for something that doesn’t have a problem getting to the pocket and seasoned veterans and tournament bowlers who run into a long or heavy pattern or are just looking to move left and create some area.

Kyle & Joel Johnson
Roto Grip Pro Shop Staff Members


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Roto Grip UFO Review
« Reply #4 on: February 16, 2020, 10:17:22 AM »
Roto Grip UFO Ball Specs:

Cover stock S20 Solid Reactive
ET Core (Asymmetrical)
Color Purple/Blue/Green
Finish 2000 Sanded

Bowler Specs:
Right Hand. PAP 5” Over 1/2 up
Rev Rate 300. Tilt 20. Rotation 50.
Speed at cameras 15.5

 The Roto Grip UFO is a hook monster! I was sad that the Original Halo was discontinued but I got over it when I rolled the UFO. The UFO has more grip and hook than my Halo and hits like a truck. I strike a lot with this ball. The UFO is also very versatile with layouts and surface changes. For a big Asymmetric you can really dial in the reaction you want as long as you have oil to roll it on. The UFO is currently the strongest ball in my bag. The UFO out hooks my Prime probably because my Prime gives me a hook set reaction where the UFO goes just a bit longer than grabs and just never stops. It creates more entry angle and gets the corners out better than my Prime. The carry percent for me is outstanding. The total hook of this ball is much more than I expected.  I can trust this ball to come back from almost anywhere and it is very forgiving. We already sold a good amount of the Roto Grip UFO balls and the feedback has been great. We are seeing a lot of hook and high scores. If you are looking for a strong ball for wet lanes the UFO is a great choice. I am very happy with this ball and demand has been high.

The UFO is very strong and handles oil easily.
The hit and carry is superb.
The bowlers like the color and look of the UFO.

Glenn Wendel
PBA Member
Storm Pro Shop Staff

PBA Member
Storm Staff Member
Turbo Staff Member


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« Reply #5 on: February 20, 2020, 01:50:33 PM »
  The UFO is the new HP4 solid from roto grip. It offers the MicroTrax-S20 solid cover with the E.T core. The numbers on this ball are 2.52 RG .054 DIFF and a mass bias of .016. I have mine drilled at 60 X 3.5 X 25 which allows me to move inside and throw 13 to 7. Honestly I was pleasantly surprised in how much the UFO got of the spot. The MicroTrax allows the ball to get down the lane before making a big move towards the pocket. The UFO is comparable to the Gravity Evolve in that the are both high end solid asymmetrics, but the cover of the UFO gets further down lane with a massive backend where the gravity has SPEC cover and Cataylst core which makes it early and smooth. I cant say enough good things about the UFO. if you're looking for a big solid that doesn't hook too early but retains energy this is the ball. Get to your local pro shop and pick one up. b]LANE CONDITION[/b][/u][/font][/size]



Type (THS, Sport Pattern etc):






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« Reply #6 on: February 23, 2020, 01:09:01 PM »

I'm really enjoying the newest HP4 line that Roto Grip has created, the UFO. I've drilled mine pin above the bridge, which is 3 inches pin-pap.

I thought that the Gravity Evolve was the strongest ball in my bag, but the UFO has me re thinking that. For being a 'big ball' asymmetric, I still get plenty of continuous motion at the back. It allows me to open up my angles and get left. It'll for sure be the first ball out of my bag on heavy conditions.

If you're looking for a ball that HOOKS a ton, and lets you get left without losing energy, then this is the ball for you.

Trent Knoop
Storm Staff
Level 1 Bowling Coach


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« Reply #7 on: February 24, 2020, 05:51:49 PM »

Layout: 55x4.75x55

Surface: factory surface (500/2000 Abralon)

PAP: 4-1/2 R, 1-3/8 U

Rev Rate: 500rpm

Speed: 20mph off hand

Conditions: THS, on both wood and synethetic lanes


The new Roto Grip UFO just flat-out hooks!!! The new cover (MicroTrax-S20 Solid) comes with a lot of surface on it (2000 sanded from the factory) and is combined with the new Equalizer Technology asym core (2.52 RG, 0.054 diff, 0.016 int diff) to create a hook monster to end all hook monsters. I've used mine in probably 7-8 different centers, and getting this ball to read the lane and hook has been the least of my worries by a long shot. Even with trying the surface higher than factory (about 4000 sanded) it still never wanted to miss the spot and created an absurd amount of friction throughout the entire lane - almost too much at times for me, given that I have a higher rev rate. What's remarkable about this one is that even on not-super-long patterns it can still get through the pins very well as long as you play more of the oil, rather than the dry, and let the ball do its thing downlane. If you need a ball to pick up when nothing else will... this is the ball for you.


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Re: UFO review by Lonnie Pemberton
« Reply #8 on: February 27, 2020, 03:28:20 PM »

Type (THS, Sport Pattern etc):THS


Core: E.T.â„¢ Core = Equalizer Technologyâ„¢ (Asymmetrical)
Coverstock: MicroTrax-S20â„¢
Finish: 2000
RG: 2.52   
Differential: 0.053

Right-Handed Tweener
Speed: 12-13 mph
Rev Rate: 315
PAP: 4 7/8 Right 3/8 Up

Ball Layout: Pin Up/Right of Ring 55 X 4 3/8 X 35

The New UFO from Roto Grip is an absolute Gem in oil. The Micro-trax S-20 cover gives you superior traction and the powerful new E.T. Core powers this thing start to finish.

Design intent with this strong Asymmetric core has been pretty clear. For years guys have been using holes to alter core dynamics and boost mid-lane reaction. The shape of the ET core does that work for you by moving mass to all the right places. The combination of powerful cover and core creates more motion on the slickest patterns.

The true key to making a great STRONG ball is keeping the power from detracting from the carry. The UFO does this in spades, it will give you the mid-lane motion no matter what you're bowling on but it doesn't burn up an go through the pins flat. I'm notorious for causing that reaction with stronger balls because of my lower ball speed and no isssues with the UFO.

I was really fond of the look I had playing straighter with less hand. Every Pro Shop loves the balls that sell themselves by hook. The rev-challenged bowlers are the life blood of the high performance lines and the UFO is exceptionally well-suited for these bowlers. Strong even read and maximum help creating motion for lower rev styles. This ball will be a staple for anyone looking for "hook-in-a-box"”



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« Reply #9 on: February 28, 2020, 11:34:28 PM »
Introducing the new “Hook Monster” from Roto Grip. The UFO is Roto Grip’s newest big asymmetrical bowling ball that gives players the confidence in a bowling ball that will hook on anything and everything. The UFO has the Equalizer Technology Asymmetrical Core wrapped with the MicroTrax-S20 coverstock. The UFO compared to the original Halo, in my opinion, is slightly cleaner through the front part of the lane and still reads the middle and the backend just as hard as the original Halo.

Out one the PBA Tour, this ball has come into play for a lot of players on the heavier volume patterns. This ball also handles surfaces changes very well and you can throw this ball on a wide range of patterns. When you need control and a ball that you know will hook on anything, this is the ball for you. This ball suites all ranges of bowling styles. Whether you’re someone that likes to throw it hard, has a lot of rev rate, doesn’t have a lot of rev rate, someone that likes to play the lanes straighter, you name it; this ball does it all.

Get yours now! You don’t want to miss out on this hook monster!

Nate Garcia
PBA Regional Champion

PJ Haggerty

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« Reply #10 on: March 05, 2020, 03:06:24 PM »
Roto Grip UFO Ball Review by PJ Haggerty

The newest addition to the Roto Grip HP4 line is the UFO.  With an RG of 2.52 and differential of .054, the UFO is a very strong, asymmetrical piece that is perfect for conditions with heavier volumes of oil.  After drilling one UFO so far, it’s been very successful on multiple types of surface and patterns.  The one I drilled is mapped out as: 5 x 4 x 75.  This puts the pin above my bridge and the mass bias just to the right of my thumb. 

The UFO provides me a strong, rolly, continuous shape that is perfect for medium-heavier volume patterns.  I’ve had the most success using this earlier in blocks before the lanes transition.  It’s also a great ball to figure out what pattern we are bowling on and helps determine how much oil is on the lane.  From a surface standpoint, I hit it with 3000 and water to take some of the initial surface off and create a bit more length.  The response time remains relatively slow, which is expected with such a big engine and strong cover.

If you need a ball to help you read the characteristics of a pattern or for medium-to-heavier volumes, the UFO should be added to your tournament / league bags. 

Gil B

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« Reply #11 on: March 06, 2020, 08:40:22 AM »
If you need hook the UFO has landed and ready to go. This new asymmetric core mixed with the new Micotrax s20 solid creates all the hook so are going to need, This ball rolls real heavy and creates a real nice shape going down lane. The new cover really reads the mids well and when this ball makes a move it goes and goes very continuous and seems not to lose any energy going through the pins. This is going to be a great tourney ball and for those that need a little extra during league play. Grab a UFO before it grabs you 


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« Reply #12 on: March 06, 2020, 06:15:36 PM »
The Halo maybe gone, but the UFO is here to stay.

Introducing the Roto Grip UFO, the ball is out of this world. Coming in at a 2000 grit MicroTrax-S20 coverstock, with the all new Equalizer Technology "ET" Core.

Ever since I put this ball in my bag, scores have not been a problem. I tend to throw the ball a little more firm and quick so with the ET core inside the UFO, it revs up a little quicker but nothing just absolutely crazy. It allows me to move in and swing the lane when necessary or play more direct. It is an absolute hook monster though. It allows me to have versatility in my bag while having a big rolling bowling ball. I've been able to play with some different surface adjustments and it amazed me at how well the ball still rolled with every adjustment. Don't miss out on the opportunity with this ball. It has become a staple in my bag and I know it will be in your bag as well.


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« Reply #13 on: March 06, 2020, 10:16:55 PM »

Length: 43'

Volume: 21 mLs

Type (THS, Sport Pattern etc): THS


Likes: Exactly what I was missing

Dislikes: none yet

This ball fit instantly into my bag.  It seems to be like a more useable Storm SureLock.  I was a fan of the Halo but mine was drilled pin down with a P3 hole.  The design intent of the UFO was that the core mimicked a ball that had a weight hole drilled into it.  This ball naturally played into my hands.  I drilled it pin down, 60x5x70, with no hole.  The UFO is clean in the right part of the lane and strong where it needs to be strong.  The UFO was exactly what I was needing at the top end of my bag. 

Other Balls in Heavy Rotation:
Nuke Cell-60x5x35
Hyroad Pearl-60x5-1/2x35
Idol Pearl-60x5-1/2x35
Casey Mattingly
Storm/RotoGrip Staff
Turbo Regional Staff
Coach's Corner Pro Shop
Alexandria, IN


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« Reply #14 on: March 08, 2020, 11:37:55 PM »
Volume: High
Type (THS, Sport Pattern etc):THS
Rev Rate: 450
Ball Speed: 17 mph
PAP: 5 1/16 x 3/4 up

Introducing the UFO, the newest release in the HP4 line. The UFO uses the new E.T. Core = Equalizer Technology wrapped with the new MicroTrax-S20 cover. The layout that I went with was 5 1/2 x 4 x 3 1/2, this layout put the pin under my middle finger. Even with the weaker pin placement, it doesn't stop the UFO! The MicroTrax-S20 cover is super strong and just digs into the oil and goes. It gets going pretty quick and has a strong and continuous arc down lane. If you are looking for a ball for heavier oil conditions, the UFO is the ball to look at!
Earon Vollmar
Roto Grip Amateur Staff