Reviews => Roto Grip => Topic started by: BallReviews-scodaddy21 on February 04, 2021, 03:24:35 PM

Title: RST X-1
Post by: BallReviews-scodaddy21 on February 04, 2021, 03:24:35 PM
Professional bowlers on tour, and those that want to bowl like them, like bowling balls that offer more hook and continuous down lane motion while driving through the pins. It is this type of bowler that the Roto Grip RST X-1 hybrid reactive bowling ball was designed for. This high-performance asymmetrical ball has a core that produces consistent core torque as well as energy transfer down lane. This RST (Roto Star Tour) core is wrapped with a versatile MicroTrax Hybrid coverstock which generates ideal responsiveness on both oil and friction.

Color: Black/Dark Forest/Forest Pearl
All colors do vary somewhat from the picture shown
Core: RST Core (Roto Star Tour Core)
Coverstock: MicroTrax Hybrid Reactive
Finish: 3000 Abralon
RG: 2.53 (for 15# ball)
Differential: 0.053 (for 15# ball)
Recommended Lane Condition: Medium/Heavy Oil
Hook Potential: High
Length: Middle
Title: Re: RST X-1
Post by: peterdohanjr on February 12, 2021, 09:25:43 PM
Roto Grip RST X-1 Ball Review

Ball specs:
Cover: MicroTrax Hybrid Reactive
Core: RST Core (Roto Star Tour Core)
RG: 2.53   Diff: .053   PSA Diff: .016

Bowler Stats:
Rev Rate: 325 Rpm
Speed: 15.5 Mph
Layout: 30 X 41/2 X 30 dual angle

Video Review link:

Before the release of this ball the talk was how similar to the Physix this ball is. When I heard that my ears perked up and I was excited to see it go down the lane. After seeing a MatchMaker RST go down the lane, yes the shape of the ball motion is the same as the Physix and I knew I needed to give this ball a try.

When comparing the two (Physix vs RST) the Physix is an earlier motion for me compared to the RST. The hybrid cover on the RST gives me a cleaner reaction through the fronts giving the ball more length than the Physix but has the same response or shape (harder and quicker) off the dry as the Physix and and both are continuous through the pins.

This ball fits between the original Physix and Rubicon for me when comparing the Asymmetric cores in the Storm family. I tested it on 40í Red Square and it rolled great where the Rubicon was too forward and didnít give me enough shape at the end of the pattern to make it to the pocket.

Pete Dohan
Storm Bowling Amateur Staff
Title: Re: RST X-1
Post by: Bigmike on February 16, 2021, 04:37:22 PM
Layout 45 x 5 x 40. I left this one box finish which is 3000 abr and have been touching this up with the 3000 pad.

My intent was to drill this and see what it looked like before adding a 2nd or 3rd one to the bag. So far it has been hard to describe where it fits and not in a bad way. It is not a PROTON PHYSIX, but is has more motion than my RUBICON. It is very readable and predictable and I have been using it on mostly medium/long-long patterns in the 40-44 foot range. If I am on the slicker side of the spectrum, I touch it with the 3000 pad and close my angles down. It also works for me when I need to open up my angles slightly more. If I have to really open them up, then I work in my NUCLEAR CELL and ball down from that to a AXIOM PEARL.

The RST X-1 looks like a great shape that anyone who isn't afraid to drill a 2nd or 3rd companion ball would want to do it with this release. The cover looks like it might be more on the solid side vs pearl and that may be what is dictating the motion which is a strong arc type reaction without over snap.
Title: Re: RST X-1
Post by: bowlstorm3 on February 21, 2021, 09:31:57 AM
Roto Grip RST X-1
Cover: MicroTrax Hybrid Reactive
Core: RST (Roto Star Tour) Core
Layout: 70 x 5 1/4 x 30

Roto Grip has made some great balls of late. The Rubicon and Rubicon UC2 are two of my favorites. Both the Rubicon and UC2 are really responsive downlane especially for asymmetrical balls. With the RST X-1, I wasnít sure exactly where it would fit in but I was hopeful that if I put the same layout on it as I have on my Rubicon and UC2, I would get a nice compliment. Bingo. For me, the RST X-1 has a lot more control than either Rubicon. The cover seems to bleed a bit of the energy going down the lane and I get a very controlled ďtourĒ type breakpoint. I wouldnít consider the RST X-1 angular in any way for me. In fact, I kind of see a trick layout type reaction with a standard pin up drill, which makes its window of use much longer. I have thrown the RST X-1 on sport patterns and house and it has a place in both worlds.

Video Review:
Title: RST X-1
Post by: Awiegand3 on March 02, 2021, 01:34:14 PM
The new RST-X1 is the newest HP4 ball introduced to the roto grip line. I'd put this ball in between the ufo and the rubicon. To me this ball for being a big asymmetric hybrid gets through the fronts reads the mids and had a lot of pop off the spot. It kind of reminds me of an Original Physix from storm. If you're looking for a dull asymmetrical bowling ball that is great left to right this is the ball for you! Go to your local pro shop and get one of these you won't be sorry!
Title: Re: RST X-1
Post by: live2bowlgr8t on March 03, 2021, 06:29:02 AM

Length: 42ft

Volume: med/high

Type (THS, Sport Pattern etc): THS


Likes: The new Roto Grip RST X1 provides a unique shape to the Roto Grip line. Its an extremely aggressive ball that does not pick up too quick and slow down. I found out very quickly that the RST needs volume to be really effective. On the typical league pattern it was a little too aggressive for what i like to do but it was not unusuable. I compared the RST to one of my favorite asyms of all time the Physix. It alittle earlier than the Physix and much much more overall. The Physix shaped the lane just a tad more simply because it was alittle cleaner. After a small surface tweak the RST, put it at 4000, the RST began to be very similar to the Physix in motion but was still alot more overall.

Nick Smith
Storm/Rotot Grip Amateur Staff


Title: Re: RST X-1
Post by: PJ Haggerty on March 05, 2021, 12:28:27 PM
Roto Grip RST X-1 Ball Review by PJ Haggerty

The Roto Grip RST X-1 is the newest addition to the HP4 line and itís special.  With an RG of 2.53 and a differential of .053, that tells me this ball will be a bit cleaner than the UFO and Proton, but would be a nice compliment to those as well.  Iíve had success on multiple surfaces and patterns with the RST and I think it fills a nice spot in my bag.  Also, with the MicroTrax (hybrid) coverstock, this provides a bit more length and a quicker response time than a traditional asymmetrical ball. 

Iíve drilled two RSTís so far and really like both.  My favorite one is mapped out as 5 ľ x 4 x 50.  Iíve had the most success when the bigger asymmetrical balls slow down too much and I need a cleaner ball with a relatively quick response time.  Also, my angles have been further open when Iíve struck the most with the RST.  Iíve had a tougher time playing straight due to it being almost too clean.  Overall, I love the motion the RST provides and it compliments so much of the lineup so well.

If you need a ball to use when your UFO or Proton Physix start to bog down, the RST X-1 could be a great ball to drill!
Title: Re: RST X-1
Post by: JasonHollingsworth on March 08, 2021, 02:34:48 PM
RST X-1. This is a wonderful benchmark type ball. Has a very even reaction and performs well in the oil as well as in the dry areas of the lane. This ball does a great job of blending out an oil pattern. Just strong enough for the heavier oil, and just clean enough to not overreact from the dry boards. This will be a great ball on all medium conditions. Very versatile ball. Will be a good step down from a high end ball, such as a Proton Physix. I see this as a ball used in the middle of tournament blocks, bridging the gap between the high-end hook monsters and your Hyroads. Also, a great ball for typical house shot conditions.

Jason Hollingsworth
Title: Re: RST X-1
Post by: hammermike2000 on March 12, 2021, 01:47:56 PM
Layout: 50 x 4 7/8Ē x 35

The RST X-1 is a unique medium-heavy oil beast that is cleaner through the fronts than your normal high end ball, and due to this, it has a quicker backend reaction as well. I was not sure exactly what to expect when I drilled it, but what I got was a ball that is a small step down from balls like the Proton Physix, but could still be used on heavier oil. The quickness that it shows down lane lends to it being very useful on all medium oil conditions, and therefore also contributes to it's versatility. It fits absolute perfectly between the Proton Physix or Reality, and balls like the Rubicon UC2 or the Idol Synergy.

Mike LeViner
Title: Roto Grip RST X-1
Post by: StormRoto on March 15, 2021, 02:16:15 PM
The Roto Grip RST X-1 is the recent addition to the HP4 line. 
 The X-1 is an asymmetrical ball but it not as strong as say a Storm Proton Phyisx or RG UFO.  I drilled mine 5 x 4.5 x 2.5 which is a pin above middle finger for me.  I can say the ball roll is unique especially how the X-1 goes through the pins.  Its just different but in a good way.  It kind of just keeps pins low and sucks them off the deck. Catch some of Stu Williams YouTube videos on the X-1, its his favorite ball right now.
The hybird Microtrax cover is very versatile and takes polish and abralon changes real well.  I have the X-1 above the Rubicon and below a Proton.
The X-1 has been a big hit at our Storm Matchmaker events.

Brian Watson
Storm Pro Shop Staff

PAP  - 4 up 1 1/8
RPM  - 400
MPH  - 16-17
Tilt    -  17
Title: Re: RST X-1
Post by: Haley3 on March 15, 2021, 07:07:02 PM
Roto Grip RST1 is definitely a ball that goes everywhere with me! At first glance I thought because of the big core I would see this ball roll out a lot for me but actually the total opposite... I like my UFO but we have a love hate relationship as  it would tend to start rolling out for me in some situations. With the RST this thing does not stop when it hits the pins. Such great entry angles with this ball allowing me to move left without getting the usual roll out from the big cores.
The RST is also very controllable I always know what itís going to do. Never over hooks just a nice round shape. Kinda like a stronger IQ for me to be honest.
This one is going to be a hit thatís for sure. !!
Title: Re: RST X-1
Post by: Chase_KosProshop on March 17, 2021, 09:07:48 PM
The Roto Grip RST X-1 is a ball that fills a Niche Spot in the current lineup. This Balls Falls Nicely Below say a Reality or Proton, but Above the Parallax Effect and Regular Parallax. This Ball reminds me of a iQ Tour but quite a bit Stronger. Silky Smooth and controllable. This is my control ball for heavier oil patterns and comes into play regularly when conditions are tough. If you are looking for a silky smooth and controllable ball motion for heavier oil patterns look no further!

Chase Roloson

Roto Grip Proshop Staff
Title: Re: RST X-1
Post by: william.tefft on March 18, 2021, 01:24:16 PM
Ball Specs:
Roto Grip RST X-1
Cover: 3000 MicroTraxô Hybrid Reactive
Weight Block: RSTô Core (Asymmetrical)
Color: Black/Dark Forest/Forest Pearl

The first thing that caught my eye about this ball was the name. It really stands out as a unique name when it comes to a bowling ball name. Now on to the performance of the bowling ball. This has to be one of the best balls Iíve thrown recently. It does a great job of getting down the lane while maintaining energy for when it hits the pins. Iíve done a little surface experimenting with this ball and have managed to still keep the same result. I would consider this a step down from some of the other high end asymmetric bowling balls that Storm/Roto Grip/ 900 Global offer, but I still found a good place in my bag for this ball. Overall I see this ball great for both the house bowler and the tournament bowler a like. Itís versatility allows for a wide range of bowlers to enjoy this bowling ball and take their game to the next level.

Will Tefft
Roto Grip Staff Member
Title: Re: RST X-1
Post by: Michael Slatky on March 25, 2021, 06:32:59 AM
Roto Star Tour X-1
Coverstock: MicroTrax Reactive Hybrid
Finish: 3000 Grit Abralon
Core: RST (Roto Star Tour)
RG: 2.53
Differential: 0.053
Int Diff: 0.016

Layout: 65 x 5 x 70
Tester:  PAP 5 1/2 R, 1 1/2 D

The RST X-1 provides a good amount of traction in the fronts with the OOB hybrid finish.  Matched up with a new Core Design the RST X-1 has been very popular during its introduction period.  You will see this ball excel on heavy to heavy/medium patterns.

I recommend the RST X-1 for longer patterns and for situations where the player is bowling on harder surfaces. For league play on the fresh, the OOB 3000 Abralon finish will do the trick. However, if you see a look that appears early, surface up to 4K on a spinner. Personally, I like the OOB look of this offering by Roto Grip.

I will use the RST X-1 as nice complement to the 900 Global Reality for various patterns. Compared to a previous offering by 900 Global, the Extreme Solid, the RST X-1 has a little bit more downlane motion, which provides more miss room outside and good potential for recovery.

Again, I recommend this one for the player looking for an edge on the fresh. Grab an RST X-1 today!

Michael Slatky
900 Global Staff Member
York, PA




Type (THS, Sport Pattern etc):




Title: Re: RST X-1
Post by: NateGarcia on March 26, 2021, 10:28:58 AM
Talk about a sleeper bowling ball packed with control and predictability. Roto Grip is introducing the RST-X1; a new asymmetrical piece in the roto grip line with a new core. This ball has a RG Value of 2.53 and a differential of .053 wrapped in the Micro Trax Hybrid coverstock. This ball fits perfectly between the UFO and Rubicon. The RST X-1 gives you a very controllable and predictable reaction. You can almost relate this ball to a asymmetrical IQ Tour but with a little more cover.
This ball is best for medium to heavier oil conditions and it would be one of the first balls out of the bag to figure out if you either using that ball on the fresh or something that more aggressive or less aggressive. This is the ball we love to use out on tour on the fresh or a piece to control the break point. If youíre looking for maximum control and youíre more of a tournament bowler, this ball is going to strike a lot on patterns.
Title: Re: RST X-1
Post by: Sappman069 on March 27, 2021, 12:28:37 AM


Volume:28 units

Type (THS, Sport Pattern etc):THS


Likes:completely versatile



Roto Grip RST X-1 was the biggest surprise I've had in a Roto Grip ball. First I would like to say that I had the expectation that the RST would be a really strong asymmetrical ball. The very first RST that I drilled was 3 1/2x4x3 and it was a very strong early rolling ball that I have found to be great early in the set on heavy oil in the front of the lane. I have to make sure to keep a lot of surface on this layout. The 2nd RST that I drilled was 5x4x2. This payout gives me a ton of length and a completely different shape compared to the other layout. With this layout I have to have at least lane shine on the cover but I can get much deeper and let the ball go right down lane. The RST is possibly the most versatile asymmetrical ball Roto Grip has ever made. The cover takes polish and surface very well and you can lay out the ball for many different reactions. If you travel to tournaments this is a must have ball.