Roto Grip RST X-1 Review

RST X1.... What can I say. This is probably one of the best balls Ive thrown in a while. The MicroTrax hybrid cover and RST core give this ball good length and a very strong backend motion. I would compare this ball to the UFO and Parallax. Its longer and more angular than the UFO and earlier and stronger than the Parallax. The flare bands are very thick at about 5.5 inches. The number are 2.53 .053 .016 at 15lbs. This ball can be used right out of the bag and throughout the night keep moving inside and its sure the make the turn.

The hybrid cover on the RST will make it a mega hit for anyone with a little slower speed. It has all the characteristics of the top shelf monster balls for me but it's just a little cleaner. That will let the bowlers who speed takes the super strong balls out of play use this one. For the rest this ball will bridge the gap perfectly when the lanes start to make you transition from the top shelf stuff. The RST will be in play all the way until it's time for your weaker pearls/shiny covers.

Roto Grip RST X-1 Layout: 4.5 X 4 X 2.5 Storm Vector Layout Rev Rate: 325 rpm, 7 degree of axis tilt, 40 degree of axis rotation Testing Information: 41-foot THS (medium volume) Kegel Machine – Brunswick Anvilane Well, I wasn’t exactly excited about purchasing this one based on some of the early reviews that I saw if I am going to be completely honest. However, there was something about the nostalgic appeal of the Roto Star Tour X-1 bowling ball that captured my attention. I remember being a kid at Mexico Lanes and not very many people owned a Roto Grip ball. They were almost thought of as that other ball company. Not a part of the big machine of Brunswick, AMF, or Columbia. This fact always intrigued me about the early Roto Grip bowling balls since I never owned one. Fast forward 30 years, now I have my chance to see what the mystery was all about. The Roto Grip RST X-1 utilizes the MicroTrax hybrid reactive coverstock and the new RST core. The specifications are middle of the road so has the potential to be a very versatile ball (right in my wheel house). Based on the previous videos I mentioned above, I decided to shine the RST X-1. I found the secret sauce for me. The RST X-1 was clean through the fronts and a noticeable change of direction on the back end. Maybe a pinch less snap than my Storm AstroPhysix. The distance between the oil rings was standard so no differences there. I was able to take hand out and play right on the oil line. I was also able to move in a zone and slow hook it. The carry was good from both places on the lane. Hence, the versatility is definitely a strength of the RST X-1. The shelf appeal is not going to jump off the shelf to the novice bowler but there is beauty in this ball. In addition, there are many of us that like the look of a solid ball going down the lane (lack of revs might be part of the reason but not all of it. Lol). I hope this ball doesn’t get lost in the new releases with brighter colors. This is going to be my sleeper pick for the next 6-month period (as the Wildstreak was and is). Schlem should be proud of this one as he brought the nostalgia feel of the Roto Star Tour brand back. Great job! Visit your local Storm VIP Pro Shop to order yours. Continue to bowl up a Storm! #Stormnation #OwnIt

The RST-X1 is the newest asymmetric ball in the Roto Grip line. For me it is very similar to the Rubicon that came out just a few months ago. When using both balls on the same line at a tournament a couple weeks ago, they complimented each other well and gave me a slightly different look going through the pins. The RST is slightly earlier and slower then the Rubicon. I immediately switched to the Rubicon when the RST was burning up too much energy, and it was the perfect 1-2 combo to start the tournament. I am also very excited to try the RST-X1 with polish, because I think that will make this ball more versatile and allow me to move further left and have the ball store more energy! Trevor Roberts 2016 PBA Southern Regional Rookie Of The Year Storm / Roto Grip Professional Staff Turbo 2N1 Grips Staff Member Right Handed Rev Rate: 440 Speed: 17 PAP: 5 1/2 up 13/16

Love, Love, Love this ball! If you can’t use a big ball like the UFO, but the medium stuff isn’t quite getting it done, say hello to the RST X-1! This ball is cleaner thru the fronts than the UFO but has way more backend. It is stronger than my Idols and the Rubicon, but very easy to throw. Whether you like to go up the 2nd arrow or get in deep and bounce it, this ball absolutely crushes the pins. The torque this core creates makes this ball hit exceptionally hard with a nice “Crunch” sound as it rips the pocket. It also finishes stronger on the backend than my Nuclear Cell, which makes sense, since this cover is Micro Trax (Nano based). If there is any oil carried down, this ball doesn’t care and continues to hook right thru it. Bowlers that feel they lost a little power because they can’t use a weight hole under the new USBC rules, need not worry anymore. All styles of bowlers will easily find a spot for this ball in their bag. It is not the most hooking ball out there, but it is one of the most useable balls out there for a large variety of bowling styles on medium to oily conditions. Ron D’Ambrosio Storm Amateur Staff #StormNation #SquadRG #Rdamballreviews

The newest HP4 line ball from Roto Grip features the MicroTrax Hybrid cover with the all-new RST Core. The RST Core comes with an RG of 2.53, Differential of 0.053 and a PSA Differential of 0.016. I drilled mine 5.5 x 5.5 x 1 and after throwing this ball for sometime I was quite amazed on how this ball actually rolled. For an asymmetrical ball this angled more down lane than I could image but it also responds well with slight hand changes to at release. This is a shape that I have never seen on the Roto Grip, this ball actually reminds me of a Storm Physix. This is a ball I will be able to use just after the bigger balls on the fresh when I need more shape down lane.

The Stats …. Color Black / Dark Forest / Forest Pearl Coverstock MicroTrax™ Hybrid Reactive Core RST™ Core = Roto Star Tour™ (Asymmetrical) RG 2.53 Differential 0.053 Intermediate Diff 0.016 Factory finish 3000 grit Abralon BOWLER STYLE: RH - Power Stroker Rev Rate: 320 Ball Speed: 15mph. PAP : 4 ⅞ - ⅜ UP My Thoughts…. The RST-X1 is the newest asymmetric ball in the Roto Grip line. When bigger balls like a UFO, Nuclear Cell, or Proton Phisix on the Storm side is too much but balls like the IDOL’s are not enough the RST X-1 checks that box. When the RST X-1 runs out of room on the approach the Rubicon is the ideal go-to ball to pick up when the RST X-1 is burning up too much energy. #Storm #RotoGrip #VISE #Logo Infusion Staff Member (coupon code HIRSCH 20% off)

Roto Grip RST-X1 –layout: 70 x 1 ½ x 30 Tech specs: Microtrax hybrid – RST core – 3000ab finish Ball review: When layout out this ball I took into account how much more rev dominate I have become in the past 2 years. So with that we drilled a shorter pin to pap for me to help calm the ball down overall. Anything 3 ½ to 5 ½ pin to pap is way too strong for me for asymmetric cores since my accident over 2 years ago. During first night of league I found it to be really super smooth even with the 30 degree back angle. So I then practiced with it and did some videotaping of the reaction. I found the ball to be a tick strong then my Idol and Rubicon but not as strong as the UFO that has a little bit stronger pin to pap – 2in pin to pap compare to the RST-X1 with the 1 ½ in pin to pap. The new RST core is going to be a BIG hit because of the weight of the block is at the north and south points of the core, where other AYSs have a majority of their mass in more to the middle of the core, the RST will tumble more and provide even more length down lane. So for me, I will start on the fresh with the RST-X1, then when the back ends get tighter, I will set up to the UFO or Proton Physix.

Introducing the brand newest addition to the HP4 line the Roto Grip RST X-1! This ball features the Micro Trax Hybrid Reactive Coverstock wrapped around the RST core which stands for ( Roto Star Tour Core )! This ball fits right between my UFO and, my Rubicon. The RST X-1 is a strong hybrid that reads the midlane very well and has a very continuous back end. I absolutely love this ball motion and, can use it on a variety of Lane conditions. This ball has earned a place in my bag since day #1! If you haven't yet do yourself a favor and go get one of these! You won't regret it!

The RST X-1 is the newest addition to the RotoGrip HP 4 line of bowling balls. The RST X-1 is an extremely versatile strong bowling ball. The reason why is the combination of the Microtrax Hybrid reactive shell and the Roto Star Tour Core (RST-1). The RST X-1 is a strong bowling ball with a very aggressive backend motion. I was able to compare the RST X-1 to the Proton Physix under the same conditions and there were some noticeable differences. The layout I used for the RST X-1 is 4 X 4 X 2 and my PAP is 5 5/8 over and ¾ up. The layouts were similar not super drastic. The first and major difference is the backend motion of the RST X-1… I did nothing to the cover and the RST X-1 Recovers from everywhere unless you throw it super terrible. Totally surprised. The second difference is the length compared to the Proton. The Proton wants to read the mid lane like Novel and the RST X-1 reads it like the cliff notes. The RST X-1 pushes farther down the lane and the energy saved is for the backend. If you like to go around the pattern or a rev monster I would recommend the RST X-1. I had a little over under on the fresh because I like to play straight. The Proton Physix blended the fresh nicely and kept my angles in front of me. My rev rate is 300 RPM and I had too much reaction or too much length but as soon as the carry down happened and I opened up my angles the RST X-1 was golden. RST X-1 is a great addition to the RotoGrip HP 4 line.

The newest addition to the HP4 line the Roto Grip RST X-1! This ball features the Micro Trax Hybrid Reactive Coverstock wrapped around the RST core which stands for ( Roto Star Tour Core )! This ball fits right between my UFO and, my Rubicon. The RST X-1 is a strong hybrid that reads the midlane very well and has a very continuous back end. I absolutely love this ball motion and, can use it on a variety of Lane conditions. This ball is one of my first choices out of my bag. If you haven't yet do yourself a favor and go get one of these! You won't regret it!

PAP 3 ¾ over 1” up ball speed 17 rev rate 475 Drilling-45x5 1/2x35 Immediately after throwing I knew this ball and I were going to be friends, right off my hand I see complete control and predictability. We don't see a lot of big cores that bring both strength and predictability, this one takes the cake for me. I can play left in the oil or move right and keep it in front of me around the track. I never feel like I'm lost with this one in my hands. Will for sure be going with me to all tournaments, 100% my arsenal building piece.

PAP 4 ½ over and 1 up ball speed 15 rev rate 275 Drilling-75x5 ½x25 So at first I didn't think I was going to drill this one, with all the asymmetrical releases and friction I bowl on, I just kinda overlooked it. Then, after drilling a couple for my customers I was intrigued and decided to go with a recommendation from my husband. I see a unique motion we haven't seen much lately, the RST-X1 is strong but not like other balls. Usually when a strong ball comes out we see a lot of hook up front which on high friction surfaces can be just to much and calls for a weaker ball to see the lanes the right way. But, with this gem, you don't have to worry about this, if you have a slower ball speed and have trouble using stronger stuff. Go out and get the RST-x1 you will not be disappointed!!

RST X1 The RST X1 features the MicroTrax™ Hybrid cover along with the all new RST™ core (RG=2.53, Diff=.053 int diff=.016). I drilled my X1 5x4x3 because I wanted to be able to use it when the front part of the lanes were hooking a bit but they weren’t quite ready for a skid snap shape yet. For me the X1 fits this spot perfectly! When balls like the UFO or Proton Physix ready too quickly, the X1 rolls great. What I really love about the X1 is the float through the front without sacrificing the quick revving asymmetrical shape that I love. If you are looking for a ball for medium to heavy oil but don’t want something that hooks in our backswing, the RST X1 is it!

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.

The RST X-1 features the new Roto Star Core wrapped in MicroTrax Hybrid. For me, I am able to use this ball on a variety of patterns. I am able to use this in league and not have to worry about what it will do. It is a great benchmark shape for an asymmetrical ball. I can see myself bringing this ball everywhere I go whether that be tournaments or league. I also see this ball as a stronger and more versatile PhysiX. If you liked that ball you will not be disappointed with the RST X-1!!

PAP 5 7/8 over and 3/8 up Layout 5x4x1.5 Did not really know what to expect from the X1 when I ordered it. I had heard Schlem talk about the ball and the intent to create more core torque with the design. But man, I was super impressed with what I saw. Typically, stronger asymmetrical pieces tend to roll out for me with my slower ball speed and ball roll. The X1 is quite different. Where the stronger balls tend to get forward for me off the spot the X1 ball roll is very continuous and shows no signs of rolling out for me. The ball takes to different lines and hand positions very well. I can see all different styles of bowlers having success with this piece if you have some oil up front. It is possible that shining the ball would allow for use on some lighter patterns. However, I’ve made no surface adjustments as the ball fits exactly where I wanted it to. I would highly recommend this ball.

The Roto Grip RST X-1 has a low RG value of 2.53 a high differential of 0.053 and a low intermediate differential of 0.016. Roto Grip came out with a new combination of the RST or Roto Star Tour Core and MicroTrax Hybrid Cover. The core cover combination will help produce an optimum balance of traction through the midlane while providing responsiveness to the friction and consistent core torque and energy transfer downlane. A little tidbit about the core, when you drill the thumb, you will always end up in that void space on either side of the core which in turn helps the ball maintain its dynamics after drilling which in turn helps maintain a high level of core torque downlane. I have the RST X-1 drilled pin up with the layout of 40 x 3 5/8 by 25 to give me a smooth reaction through the midlane and continuation off the breakpoint. I did a ball comparison with the Storm Parallax up first, as you can see the Parallax leaves the flat ten showing the strength of the RST X-1 compared to the Parallax which is also a Hybrid cover. Second comparison is to the Roto Grip Rubicon which is drilled pin down, the Rubicon has more of a bench mark reaction very smooth through the midlane and continuation off the spot but again leaves the flat 10. Third comparison is the Storm Proton Physix, the Proton Physix here I was able to create more angle to the pocket downlane and open up the lane more than the RST X-1. The RST X-1 will sit in my bag in between the Storm Proton Physix and Rubicon.

The Roto Grip RST X-1 is very strong HP4 ball. I drilled it with a favorite layout of mine 5.5x4x2 It reads the lane very well and just continues on the backend. No quit in this ball. You better have oil if you keep the 3000 grit factory finish. I personally shined mine for the house shot and it is my go to ball from the start. This ball is so good, it stores so much energy and drives through the pin, strong controllable finish on the backend Hitting Power is as great as every Roto Grip Ball I’ve thrown. I can play pretty much any line left of 3rd arrow and the ball will recover from anywhere. My PAP is 5-1/8 and 1/8 up. Usually around 15-16mph, I’d probably be classified between a tweener and a cranker. See my ball review video on YouTube here: https://www.youtube.com/watch?v=IV7JQj0VdYo

I have had my RST-X1 now for a couple weeks. I went pin down 65x4.25x75 with this ball. It is smooth and predictable which is what I wanted. This ball has been great for me to blend out the lanes when they get over/under. Also I have been using it as a transition ball off of my Rubicon UC2 when it seems to stop carrying, just move back right and start to get the corners out again.

Ball Review RST-X1 Cover: New MicroTrax Hybrid Cover Stock 3000 unpolished RG: 2.53 Dif:0.053 PSA: 0.016 What can I say but WOW! Asymmetrical balls and I have a hard time matching up, but I can stay this one is a winner for me. I drilled this OOB 45 x 3 ½ x 40. I left the cover OOB. The RST is smooth through the front for me and reads the mid lane very well and is continuous with a strong backend. I have a hard time getting Asymmetrical to get through the pins without burning up and getting the right shape. I have experimented with different layouts on several balls. This one is dead on. I shot 723 with my first series right out of the box. I found that I can move and trust the ball will turn the corner which is very difficulty for me since I am a speed dominant lower rev player. I can see myself using this right out to the bag on the fresh. This ball has a lot of versatility another home run for Roto Grip!!

Cover: MicroTrax (Micro Nanoparticle Traction) Hybrid Core: Roto Star Tour Core (RST™ Core) Finish: 3000 RG: 2.53 Differential: 0.053 ME: Right-Handed Tweener Speed: 12-13 mph Rev Rate: 315 PAP: 4 7/8 Right 3/8 Up Ball Layout: Pin over bridge/ring 55 X 5 1/4 X 35 The New RST X-1 is a throw back motion ball updated for todays conditions. Compared to other HP4 releases it is cleaner than the solid versions you've seen released in recent years. Compared to the Pearl HP 4 line balls it is much smoother. Compared to the other hybrid releases, it is both. It's a ball that accentuates the best characteristics of strong balls with Hybrid covers. It's mid-lane read is great, down-lane motions super predictable, and is incredibly continuous without a drastic change of direction. My favorite thing about the RST-X1 is how many different conditions it is useful on. Even the extreme ends of the spectrum are in play. The RST X-1 is smooth enough that with hand positions you can control downlane reaction on both short and long oil. In league it has been exceptional for me on conditions that are a little more blended. The adaptability of this ball to every condition makes it a good match up for most everyone.

The RST X-1 is a ball that really suits my game. Being a medium rev, medium speed player, I often struggle finding balls that have enough length and backend to complete with higher rev players. However, with the RST X-1, I find it is the perfect combination of length & backend. I’ve used this on fresh house shots, and all types of sports patterns. This ball is the epitome of versatile. This ball gets my highest of recommendations.

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:https://youtu.be/Vz1fsM1sGPo 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 40’ Red Square and it rolled great where the Rubicon was too forward and didn’t give me enough shape at the end of the pattern to make it to the pocket. Pete Dohan Storm Bowling Amateur Staff #StormNation

I have always had good success with hybrids that are 3000-4000 out of the box with bigger weight blocks. The Storm All Road was the most recent ball I drilled in this category prior to the RST X-1. Ball path down the lane is very similar in shape and length. However, being asymmetrical the RST X-1 comes off the spot stronger and sharper than the All Road. On most conditions I'm easily 2-3 boards further left with my feet and a little more forgiveness to the right as well. I do like the little extra on the backend this ball gives compared to many of the hybrids I have thrown. I consider myself a tweener and a bit of a spinner. I used the pin buffer layout system on this one and went with 4 ½ x 3 ¾ x 2 ½ .

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 wasn’t 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 “tour” type breakpoint. I wouldn’t 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: https://youtu.be/EgfpTDkS2LI Chris Freeland Storm Amateur Staff Bowler Info: PAP 5 over, 3/4 up, Speed 16-17, Rev Rate 400

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!

The Roto Grip RST X-1 is the newest addition to the HP4 line and it’s 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. I’ve 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. I’ve drilled two RST’s so far and really like both. My favorite one is mapped out as 5 ¼ x 4 x 50. I’ve 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 I’ve struck the most with the RST. I’ve 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!

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 #StormNation

Great ball, first 2 sets out of the box 753 and 802, ball hits like a truck

VA, United States

Layout: 50 x 4 7/8” 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.

Bowled two series so far with this ball. 699 and 714. Would of been better but I left 12 10 pins. This ball deflects a lot but it loves the pocket and gets there often.

PA, United States

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 Modify message

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 it’s 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 that’s for sure. !!

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

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 Review: 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

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 you’re looking for maximum control and you’re more of a tournament bowler, this ball is going to strike a lot on patterns.

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.

Love this ball. Great ball reaction and very forgiving if you miss your mark. It doesn’t over react and has a nice controlled continuous motion.

Kansas, United States

I needed something a little stronger with the same motion as the Astrophysics. This delivers. Strong, predictable but not too strong that it over hooks.

NC, United States