win a ball from

Author Topic: UFO Alert  (Read 13253 times)


  • Administrator
  • Hero Member
  • *****
  • Posts: 903
UFO Alert
« on: August 11, 2021, 04:32:49 PM »
Ball NPS Score: 100.00 has the largest selection of bowling balls
Click here to shop.

Your competition won't be able to identify this object as it flies down the lane. The Roto Grip UFO Alert bowling ball works well with bowlers anywhere in the universe regardless of your bowling style, rev rate, or ball speed. This high-performance bowling ball utilizes the E.T. Core - Equalizer Technology which has built-in "Equalizer Cavities" that take the place of past weight holes to create more mid-lane movement as well as continuation down the lane. This core is paired with the eTrax Hybrid Coverstock which is 2 parts pearl and 1 part solid. This coverstock formulation helps offer responsiveness to friction at the backend while not being overly angular. The core and cover pairing for the UFO Alert is ideal for medium to medium-heavy house-type oil conditions.

Color: Purple Solid/Emerald Pearl/Teal Pearl
All colors do vary somewhat from the picture shown
Core: E.T. = Equalizer Technology (14-16#)
Coverstock: e-Trax Hybrid Reactive
Finish: 1500-grit Polished
RG: 2.52 (for 15# ball)
Differential: 0.054 (for 15# ball)
Recommended Lane Condition: Medium to Medium/Heavy Oil
Hook Potential: High
Length: Late


PJ Haggerty

  • Full Member
  • ***
  • Posts: 181
Re: UFO Alert
« Reply #1 on: August 16, 2021, 12:30:34 PM »
Roto Grip UFO Alert Ball Review by PJ Haggerty

The latest addition to the HP4 line at Roto Grip is the UFO Alert.  After drilling the original UFO and having success with it, I was excited to see a pearl version being made in the UFO Alert.  With an RG of 2.52, differential of .054, and intermediate differential of .016, the Alert is a perfect complement to the entire line.  I’ve been able to go to it after a Proton Physix has done its job and before I need to go to a Rubicon UC2 or Trend.

Also, with the new rules regarding weight holes with USBC, the masterminds at Storm and Roto Grip have developed a new core called the Equalizer Technology core.  It has built in cavities to emulate the use of a weight hole.  This creates more flare and increased dynamics of the ball.  I’ve drilled one so far and love it.  It’s drilled at 5 ¼ x 5 x 70.  This puts the pin above in-between my ring and middle finger and the mass bias next to my thumb.  I left the surface alone too and the Alert rolls great!

Overall, if you need a big cored, hybrid coverstock, asymmetrical ball that allows you to create a ton of angle down lane and put up huge scores, the UFO Alert is the next ball you should drill.  It’s a home run!  Go drill one!

Luke Rosdahl

  • Hero Member
  • *****
  • Posts: 1093
UFO Alert by Luke Rosdahl
« Reply #2 on: August 17, 2021, 03:02:11 PM »
UFO Alert Video Review:

The UFO Alert features the asymmetric ET or Equalizer Technology core wrapped in the clean and responsive eTrax hybrid coverstock.  ET comes in at a 2.52 RG, .054 differential, and .016 split or intermediate differential in 15 pounds, and is quite dynamic.  With a little higher RG than is quote unquote typical for asyms, a big differential, and a medium intermediate differential, it wants to get down the lane a bit further than typical asyms and help deliver a big move on the backend.  The eTrax hybrid cover helps to further that intent by breezing through the fronts and responding quickly to friction.  The overall package is strong enough to handle medium to heavy volumes, it’s a little stronger than I expected on paper, but that puts it in prime territory to be a ball down from something like and RST X-1 or Incite, or be the first ball out of the bag for league, and is something you can chase the shot in with all night if you have a higher rev rate, or if you’re lower rev rate, it’s something that can help you keep your angles more closed and still look like you have more revs than you actually do.  I rate the UFO Alert an 8 on hook, a 6 on length, and an 8 on backend strength. 
Storm Amateur Staff
Turbo Regional Staff
YouTube Channel:
Twitter: @LukeRosdahl


  • Jr. Member
  • **
  • Posts: 43
Re: UFO Alert
« Reply #3 on: August 18, 2021, 09:19:51 AM »
UFO Alert
eTrax Hybrid
1500 Polished
RG: 2:52 Differential: 0.054
PSA: 0.016
Drilling: 60 x 3 ¾ x 35

The new UFO Alert by Roto grip is here! I never got to throw the UFO but drilled several new it was one of the strongest balls on the market. The UFO is no exception. With the eTrax hybrid cover this all is a bit smoother and cleaner. For me it stores a bit more energy and has a lot of backend. I found I can move in and get a different shape this is a ball you can play just about anywhere with any style. I took the cover down to 2000 and really fits my game. If you’re looking for a new strong ball asym hybrid that can cover a verity of conditions and need a strong ball you should take a good look at the UFO Alert. 


  • Jr. Member
  • **
  • Posts: 55
Re: UFO Alert
« Reply #4 on: August 19, 2021, 05:28:27 PM »
When Schlem said their idea around this ball was to create a modern day of the Hyper Cell Fused, they weren’t kidding! Roto Grip is introducing their new asymmetrical hybrid, the UFO Alert! I am so excited for this ball. I was in love with the original UFO and I couldn’t wait for the next one in line and this one sure does not disappoint! The same core that we loved in the original UFO wrapped around eTrax Hybrid reactive coverstock. Compared to the original, you’re going to see the UFO Alert a lot cleaner and sharper off of the spot. Because it is a hybrid coverstock, it is 2 part pearl and one part solid, which gives the player that extra length and flip in the back end on a variety of patterns.
For me, this ball is best on medium to heavy oil patterns when I am making the first transition from my big solid asymmetrical balls. The UFO Alert gives me plenty of length and flip moving across the lane and this ball sends pins flying! Pick up one at your local Storm VIP Pro Shop!


  • Jr. Member
  • **
  • Posts: 53
Roto Grip UFO Alert review by Trevor Roberts
« Reply #5 on: August 20, 2021, 12:33:13 PM »
Lane Condition
Length: 40
Volume: Medium
Type (THS, Sport Pattern etc): THS

The UFO Alert gives you exactly what you need once your solid asymmetric balls are burning up too much energy. In my ball review, I was able to stay further right than with most shiny cover bowling balls. The Alert is smooth through the midlane and because of its controlled motion, won’t force you too far left too early. When I did start to move left, the clean cover responded well to the friction and still got back to the pocket with ease. The versatility from the right and further inside is my biggest take away from throwing it my first two days. This ball can be used from multiple angles and it looked great doing so. I’m excited to throw this ball more in tournaments and while bowling league this summer.

YouTube Review

Social Media
Click This Link Below For All Social Media :

Save $5.00 On Your First Order
Click This Link Below To Get Your Bowlifi Jersey & Save $5 Off Your First Order :

Bowler Stats
Trevor Roberts
2016 PBA Southern Regional Rookie Of The Year
Storm Products / Turbo 2n1 Grips / Bowlifi Staff Member
Right Handed
Rev Rate: 400
Speed: 16
PAP: 5 1/2 up 13/16


  • Full Member
  • ***
  • Posts: 127
UFO Alert
« Reply #6 on: August 22, 2021, 10:08:48 AM »
Roto Grip UFO Alert Ball Specs:

Cover stock Etrax Hybrid Reactive
Asymmetric Core
Color – Purple/ Emerald /Teal 
Finish 1500-grit Polished

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 Alert is very clean enough through the front with a nice angular move at the back. The UFO Alert is nothing like the original UFO. The Original was early and had more of an arch shape while this one is almost a skid flip reaction. My worry is most bowlers will overlook this very good ball because of the popularity of the Dark Code which released at the same time. Roto has produced an Asymmetric ball that does not read too early with a nice tame mass bias. This ball is a bit weaker than my Dark Code but stronger than my Burner Pearl. The angle on the back part of the lane helps recovery and provides nice carry.  The Alert is another ball that does not need to be drilled strong to provide a strong motion. We are actually using weaker drill patterns more and more unless a bowler will be encountering heavy or flat patterns or is speed dominate.

The UFO Alert is clean through the fronts with pop on the back.
The entry angle and hit are very good.
Weaker Layouts seem to work well on this ball.

Video Link:

Glenn Wendel
PBA Member
Storm Pro Shop Staff

PBA Member
Storm Staff Member
Turbo Staff Member


  • Full Member
  • ***
  • Posts: 180
Roto Grip UFO Alert by Casey Murphy
« Reply #7 on: August 24, 2021, 04:13:08 PM »
Orientation:  Right Handed
Rev Rate:  400 RPM
Speed:  16-17 MPH
PAP:  4 ½ over and ½ up

Location:  Enterprise Park Lanes, Springfield MO
Pattern:  High Volume THS
VLS Layout: 
Layout 2:  4 ½ x 4 x 4 1/8 (pin below bridge)
The UFO Alert is the ULTIMATE blend ball.  It’s super crazy smooth.  I sorta liked the UFO when I could throw it, but it was mostly too strong.  The UFO Alert is much much cleaner but never really jerks off the spot.  That’s the great thing about Hybrids, they’re cleaner in the front than solids, but they don’t jerk down lane like a pearl.  Mine is pin down and I feel like I can throw it all block as long as there’s enough friction.  The first thing I noticed was the smooth but defined backend every single shot.  It’s not ever going to boomerang back like a stronger pearl will, but it will reduce the over under you’re going to see on a pattern.


  • Hero Member
  • *****
  • Posts: 1059
Re: UFO Alert
« Reply #8 on: August 26, 2021, 03:32:49 PM »
I drilled the UFO ALERT up 35 x 4 x 50. I have lightly touched up the surface with 2000 abr lightly. This was to duplicate a ball that I enjoyed quite a bit which was the HYPER CELL FUSED. The cover on the ALERT is the same as the FUSED so I thought this would be a good way to start on this one.

The UFO ALERT is a good hard arcing reaction that should be a staple in tournament bags. Not too flippy at the spot but reliable motion that is not hard to control. Compared to my DARK CODE, the ALERT blends out the oil a little smoother. The DARK CODE is sharp off the spot and at times is sideways if my speed is on the slow side. The ALERT rolls thru it and would just stand up and half-ten where the DARK CODE didn't lay off and left designer splits. Now when the ALERT is standing up and going forward a little too much, that is the signal to move to something like the DARK CODE or RUBICON UC2 which get more length naturally being pearls. Touching the surface with the 2000 pad did make it more controllable. I also tried my RST-X2 in the same spot and the ALERT was much earlier compared to the X2. The X2 is another pearl that has strong motion when the lanes have dried out a little too much for the ALERT to keep online.

Drill the UFO ALERT when you want that slightly earlier than a pearl motion but your solids are setting up or going forward just a touch too quickly.
"Tell me Cup, how does a great ball striker like you shoot an 83? Well I lipped out this putt on 18......"

Mike Craig - Storm Bowling Amateur Staff - Westerville, OH


  • Full Member
  • ***
  • Posts: 126
Re: UFO Alert
« Reply #9 on: August 30, 2021, 10:37:23 AM »
UFO Alert:
The UFO Alert features the eTrax hybrid cover and the Equalizer Technology asymmetric core. The numbers on the Equalizer Technology are 2.52 RG, .054 diff and a .016 intermediate diff.

Mine is drilled 4.5” x 5.25” with a 2” pin buffer. Because of the slightly higher RG on this core and the hybrid cover I wanted to take advantage of the down lane shape in the UFO Alert. My first impression is that the UFO Alert is stronger than I thought it was going to be. I was expecting the ball to read farther down the lane than it did initially, but it is the perfect complement to the RST X-1 and X-2. I found that it fits right in between them nicely. For me, the UFO Alert offers a strong, medium-fast response shape without reading too early.


  • Jr. Member
  • **
  • Posts: 13
Re: UFO Alert
« Reply #10 on: August 31, 2021, 01:18:50 PM »
Likes: Easy length, controllable backend and keeps pins low

Dislikes: A lot of volume in the front part of the lane. This is a better piece for transition or when there is friction.

35 x 5 x 60 on the layout

Axis point is 4 7/16 over and 3/8 up. Revrate in the upper 300s, ball speed between 15 and 16 mph. I typically like to start at 15 on a typical house shot and migrate in from there.

Initial reaction...this ball is a very pretty one! My favorite color is green so the sparkles on this one are really eye catching. Hopefully, I get to watch those translate to strikes!

On to the review:

I never had the original UFO but from what I know about it, that core is on the larger side. The big cores are usually pretty rolly for me so my hope with the layout was to get the ball to be clean through the front part of the lane and then tumble once it reaches the end of the pattern. That is exactly what this ball does. Over the summer, we bowled in a sport pattern league and this ball got a lot of play on a variety of patterns (most notably, this year's US Open pattern). For me, it allowed EASY length with a slower response to friction (mostly due to layout) and was really great for the transition on most of these patterns. I would say this is approximately 2-3 total boards of overall hook more than my Rubicon UC2 with a more round downlane shape.

If you need a piece that will allow you to navigate transition with ease, this is certainly the one for you. Put holes in one today!


  • Jr. Member
  • **
  • Posts: 71
  • #StormNation #OwnIt #TurboGrips
Re: UFO Alert
« Reply #11 on: September 02, 2021, 09:16:01 AM »

Length: 43'

Volume: 22.5 mLs

Type (THS, Sport Pattern etc): THS


Likes: This ball/layout match up with me GREAT!

Dislikes: none!


This ball has pleasantly surprised me.  I drilled this one with a weaker than normal layout.  (5” pin down) After the fact I was worried that I had turned this ball into a Rubicon UC2…boy was I wrong!

While making this ball cleaner through the middle, I did make it stronger down lane, but the strength of the cover and core combination does not make it too angular.  It also doesn’t make this ball miss the spot either. 

I am loving this ball on my 5 person team league, because it doesn’t read the transition too hard.  On my trios league it allows me to stay on top of  it a bit longer before I have to chase it in. 

This thing is SO fun to throw!

Dual Angle Layout: 50x5x65
VLS: 5x4.5x3.75

Balls that are currently in the bag:
Zen- 50x4.25x65
Zen Master- 50x4.75x30
Dark Code- 50x4.25x65
Casey Mattingly
Storm/RotoGrip Staff
Turbo Regional Staff
Coach's Corner Pro Shop
Alexandria, IN


  • Hero Member
  • *****
  • Posts: 689
Re: UFO Alert
« Reply #12 on: September 05, 2021, 09:40:40 PM »
Roto Grip UFO Alert
Coverstock: e-TRAX Hybrid Reactive
Weight Block: E.T. Core
Finish: 1500-grit polished
Layout: 4.5 x 5 x 2
Testing on a 43ft THS with recent changes to the amount of reverse oil to help calm down the early hook that the center's lane panels have, I found the UFO Alert getting further down the lane then the Dark Code and Roto Grip UC2 I compared it with to see where it will fit in my bag for the upcoming bowling season in that center. I have struggled to score there the past year and half because the pattern hooked so early and strong for me, my ball speed was down to 13.5 mph and my rev rate was still around 475. So I really struggled to combat that and tried drilling a little of everything from Tropical Storms - yes - OLD SCHOOL Tropicals, Idols, IQ's, stronger stuff like Nuclear Cells and similar stronger ASYMS. With the UFO Alert with the coaching assistance of Hank Boomershine, was able to increase ball speed to close to 17 off the lane again and found the UFO and Rubicon were not strong enough down the lane. With the UFO Alert with a stronger layout then what I have been using, the UFO Alert held up from the first shot down the lane to the last shot over 50 minutes later of practice on the same lane. As the pattern broke down I found it better to move LEFT - instead of the natural progression for left handers like me to move right and move my eyes and mark further down the lane to control the back end. I struck more than I deserved with the UFO Alert. Cannot wait to start league in this center with the UFO Alert the first ball on the rack


  • Jr. Member
  • **
  • Posts: 89
Re: UFO Alert
« Reply #13 on: September 17, 2021, 06:47:28 PM »
Ball Specs:
Roto Grip UFO Alert
1500 e-Traxâ„¢ Hybrid Reactive
Weight Block: E.T. Coreâ„¢ (Asymmetrical)
Color: Purple Solid/Emerald/Teal

The UFO line contains a very underrated core in our opinion. The continuous motion that is created is incredible. This line favors those with higher ball speeds or lower rev rates looking for something that is going to keep energy down lane and really pack a punch. If you are seeing heavier volumes or love to move left and create some area then this ball will also suit you perfectly. This ball is pretty comparable to the Storm Phase 3 as a first out of bag and will also serve as a perfect step down to the UFO or Gravity Evolve. P.S. if you have not seen a picture of this core please do so ASAP it is an eye catcher and the technology behind it is remarkable!

Kyle & Joel Johnson
Roto Grip Pro Shop Staff Members


  • Jr. Member
  • **
  • Posts: 57
Re: UFO Alert
« Reply #14 on: September 21, 2021, 10:12:10 PM »
UFO Alert - Ball Specs
Cover Stock: eTrax Hybrid Reactive
Finish: 1500 Grit Polished
Core: Equalizer Technology Core
Color: Purple Solid/Emerald/Teal
RG: 2.52
Differential: 0.054
Intermediate Diff: 0.016

The Roto Grip high performance UFO Alert has the space aged Equalizer Technology Core and eTrax Hybrid Reactive cover stock. The UFO Alert stands up very well in the midlane with a strong arching playable backend motion. I tested this ball on a 44 feet typical house pattern with no issues playing right of the track area and left of 25. As a low to medium rev player this ball will be great on house patterns and medium oil tournament patterns. This is a great ball for all levels of bowlers. Order one from your local pro shop today! My ball review videos are posted on YouTube channel Stanley Waite.

Stanley Waite
900 Global Staff Member
Dover, DE