The UFO is out of this world.

WEIGHT BLOCK: E.T. Core = Equalizer Technology
WEIGHT: 15lbs
RG: 2.52
DIFF: 0.054
PSA: 0.016
COVER: MicroTrax-S20
OUT OF BOX: 2000 Grit

Patterns used for review are HP modified.
Pattern A: 40Ft, 24 Mls
Pattern B: 43Ft, 29 Mls

PLAY
The UFO was able to play both patterns from the inside but favored the longer Pattern B. 

Initially my thoughts were, boy does this guy hook. Heavy continuous arch. Straight out off the box it can be a little intimidating but after a few games as you get oil into the cover it tames down nicely.

Pattern A:
The UFO out of box is a little much for this pattern. The ball picks up really quick that the lighter volume and shorter length leaves little room for error inside of your target.

Pattern B:
This pattern was more appropriate for the UFO. The extra three feet provided the extra hold. So much room for error.  Miss left and the ball is still able to pick up and make a move to the pocket.  Miss right and the ball hits the friction and comes roaring back.

LOW DOWN: The UFO is it of this world. If you struggle getting the ball to read heavy oiled lanes this is the ball for you. The E.T. Core will definitely provide you the extra movement to counter the no extra holes rule that starts at the beginning of the 20/21 bowling season. #SquadRG

Gender: Female
Rev Rate: 315
Ball speed: 16.5 mph
P.A.P: 4-1/2 & 1-1/8

My first impression of the UFO was simple. Wow this thing took over the strongest ball in my bag and I love it. I found it to be super controllable and continuous down lane for a strong asym. I tend to find that my big asymmetric balls roll out very easy but that’s not the case with the UFO. I feel like no matter what rev rate or speed you have this ball will fit everyone’s game, I haven’t seen it look bad in anyone’s hand yet. I compared the UFO with the Halo and found that they were similar but the UFO kept driving through the pins where the Halo came in a little weak. My move was about 4/1 left with the UFO. If you’re looking for a strong asymmetric solid that doesn’t quit in the back end then you’re looking at it. Would be a great ball to replace that old halo with when the new weight hole rule comes into play.

Take a look for yourself in my video review below!!!

https://www.youtube.com/watch?v=EKVdHdYyozM”

The new ball from Roto Grip in the HP4 line is the UFO.  This is a strong solid asymmetrical with a lot of hook!  I drilled mine 5 x 5 x 2.  I'm usually not a big fan of big solid asymmetrical balls with my roll.  But the UFO was a huge surprise. The UFO with a little Storm step 2 applied to the cover, this ball was the most overall backend reaction that I have seen in a long time.  UFO is way stronger than the RG Halo. When using this ball on house a couple sport patterns the UFO just keeping hooking. So I just kept chasing it left.  Usually big asymmetrical's will just bleed off to much energy and lose reaction down lane at the breakpoint.  Not the UFO it just kept hooking.  With the new core and cover it created a ball reaction that was different than anything in the line today. This is a great addition to the RG line. 

Brian Watson
Pro Shop Staff

PAP - 5 up 1 1/8
Tilt  - 17
Speed - 16-17
Rev Rate - 400

Roto Grip UFO

55 x 4.75 x 20



As someone who utilizes lots of weight holes, I was very interested in this core!  Historically I’ve loved most HP-1 Roto Grip products so I had high hopes going into this one.  I own and operate a pro shop in a bowling center with very high friction 32 year old synthetic lane beds.  Needless to say, the high end duller asym’s don’t match up the best in our place.  This ball gets through the front as easy as a shiny ball and slows down in the mid-lane very well.  I see more down Lane continuation out of this ball vs Omega Crux.   Based on my surface preparation this could be either my big dull hook monster or my first transition ball when the duller one gets too early and lazy.  So far I’ve been able to stay in this ball longer than expected!  This is a ball I will use on fresh quite often and is definitely intended for heavy and medium volume patterns.  Speed dominant players should like this one! 

Layout: 70 x 4 x 35

Ball specs:  2000 grit - MicroTrax S20 solid / E.T core

Using on the older HPL with the less blended pattern it was stronger and more angular then the Wild Streak. The UFO came more into play when I got into games 4, 5, and 6 during a recent tournament where the Wild Streak started to weaken due to carry down, the UFO pick up where the Wild Streak left off. The ball was more suited for me on fresh house pattern on SPL with more blend in the pattern. Was able to adjust more on SPL then the HPL, just showing how the surface of the lane panels can create such different looks in the mid lane and roll area in the back end. A good strong step up from the Wild Streak.

The UFO is the latest solid offering in the HP4 line, replacing the Halo.  Not only does it replace it, but I think it improves on it.  The UFO features the MicroTrax-S20 cover and the new E.T. (Equalizer Technology) core.  The core contains slots at the bottom meant to mimic a weight hole, and the reaction on the lane is dynamic, especially for a nano based solid.  The UFO has plenty of traction, and doesn’t seem to burn energy on friction like some other bigger hooking balls can.  The more friction there is, the more the UFO is going to hook, but the more oil there is, the better it’s going to perform, because oil is what it was designed for.  The UFO reacts like how I would expect a solid PhysiX to react, it has an aggressively continuous and energetic motion throughout the lane. 

The UFO is the latest technical development in asymmetrical bowling balls that lets the user have a “balance hole” effect on ball motion without actually drilling an extra hole. The UFO is in the HP4 line from Roto Grip, and uses Micro Trax S-20 cover which creates a lot of traction. The cover has a color combination of deep purple, baby blue and neon green and is finished with a 2000 grit abralon pad. The core of the UFO is called E.T. core (equalizer technology) and creates an Rg of 2.52, a differential of 0.054, and an intermediate diff of 0.016 in 14-16lb balls.

I drilled my UFO with a layout of 4 x 3.5 x 2. I decided on that particular layout to compliment my 4 x 3 x 2 Storm Evolve. Using such a strong layout, I wanted the UFO to be the go to ball on heavy volume, longer oil patterns after the backends get lazy while using the Evolve. The UFO has a lot more traction and angle once the Evolve gets a little lazy from oil carry-down and lane and surface shine. I used the UFO at the box finish for about 20 games, just wiping the oil off between shots and cleaning it with Reacta-Clean at the end of sessions. The UFO started to lose some board coverage, which was fine as it covered plenty of boards out of the box. Using the UFO at this “broken in” finish was a little too lazy on the 46 foot 2015 Roth/Holman doubles pattern, so I freshened the surface with a green scotchbrite pad, and the ball became a monster, almost giving me too much hook. Suffice to say, the UFO has not disappointed as being that super strong board covering hook monster that a medium rev rate guy like myself looks for at times.

I’m glad I drilled the UFO. I was originally going to pass on it because I had just drilled the Evolve and thought maybe the UFO would be too close to my Physix in reaction. It is different enough to have in the bag when going to a tournament that I know will be on a longer heavier pattern. The UFO is also usable on some over-walled, high volume of oil in the middle of the lane, house conditions, when keeping the ball in the oil. Thank you for reading my review of the Roto Grip UFO.