{"merchant":{"slug":"bowlersmart","name":"BowlersMart","domain":"www.bowlersmart.com"},"id":"1242704","sku":"BBMRKS-1","gtin":null,"name":"Roto Grip Rockstar Amped Bowling Ball","brand":"Roto Grip","categories":[{"name":"Bowling Ball Deals","slug":"bowling-ball-deals"},{"name":"Bowling Balls","slug":"bowling-balls"},{"name":"Bowling Deals","slug":"bowling-deals"},{"name":"Heavy Oil Bowling Balls","slug":"heavy-oil-bowling-balls"},{"name":"High Performance Bowling Balls","slug":"high-performance-bowling-balls"},{"name":"Pearl Reactive Bowling Balls","slug":"pearl-reactive-bowling-balls"},{"name":"Roto Grip","slug":"roto-grip"},{"name":"Roto Grip Bowling Balls","slug":"roto-grip-bowling-balls"},{"name":"Symmetrical Core Bowling Balls","slug":"symmetrical-core-bowling-balls"}],"buy_url":"https://www.bowlersmart.com/product/roto-grip-rockstar-amped-bowling-ball/","pages":{"html":"https://ittems.com/bowlersmart/p/roto-grip-rockstar-amped-bowling-ball","md":"https://ittems.com/bowlersmart/p/roto-grip-rockstar-amped-bowling-ball.md","json":"https://ittems.com/bowlersmart/p/roto-grip-rockstar-amped-bowling-ball.json"},"price":{"min":104.95,"max":104.95,"currency":"USD"},"availability":"instock","checked_at":"2026-10-15T17:34:10.676878+00:00","source_updated_at":"2026-10-15T15:18:03+00:00","summary":"What should I know about the Rockstar Amped? Symmetric Rocker AI Core with higher RG for length and direction change NanoStar Pearl Reactive cover at a Power Edge polished finish Aggressive, angular backend for medium to medium-heavy oil","specs":[{"key":"Brand","value":"Roto Grip"},{"key":"Bowling Ball Core Shape","value":"Symmetrical Core"},{"key":"Bowling Ball Core Name","value":"Roto Grip Rocker AI Core"},{"key":"Bowling Ball Cover Name","value":"Roto Grip Nanostar Pearl Reactive"},{"key":"Bowling Ball Coverstock Type","value":"Pearl Reactive"},{"key":"Radius of Gyration: RG (15LB)","value":"2.48"},{"key":"Differential: Diff (15LB)","value":".050"},{"key":"Flare Potential","value":"4 - 5 Inches"},{"key":"Surface Finish","value":"Storm Power Edge"},{"key":"Ball Performance Level","value":"Roto Grip HP3 Bowling Balls"},{"key":"Preferred Lane Conditions","value":"Medium - Heavy Oil"},{"key":"Bowling Ball Color","value":"Purple, Red"},{"key":"Scent","value":"None"}],"variants":[{"sku":"STBBMVXD16","gtin":"887970726310","label":"16LB","price":104.95,"stock":1,"options":{"Ball Weight":"16LB"},"availability":"instock","regular_price":249.95},{"sku":"STBBMVXD15","gtin":"887970726297","label":"15LB","price":104.95,"stock":37,"options":{"Ball Weight":"15LB"},"availability":"instock","regular_price":249.95}],"images":[{"alt":"roto-grip-rockstar-amped-600-oct2025","url":"https://www.bowlersmart.com/wp-content/uploads/2025/10/roto-grip-rockstar-amped-600-oct2025.jpg"},{"alt":"Rocker +AI Core_front","url":"https://www.bowlersmart.com/wp-content/uploads/2025/01/Rocker-AI-Core_front-1.png"}],"release_date":null,"description":"Aggressive Backend on the Rocker AI Core\n\nAbout the Rockstar Amped\n\nThe Roto Grip Rockstar Amped turns up the backend. It is the pearl version of the Rockstar, engineered for high performance with an aggressive, angular reaction that makes every shot count. Where the solid Rockstar grabs the mid-lane, the Amped saves its energy for a stronger move off the dry.\n\nThe Rockstar Amped pairs the symmetric Rocker AI Core with the NanoStar Pearl Reactive coverstock at a Power Edge polish, in a bold Purple and Red cosmetic. The higher-RG Rocker core adds length and stronger direction change, while the polished pearl cover clears the front of the lane and delivers a sharp, aggressive backend on medium to medium-heavy oil.\n\nUnderstanding the Roto Grip Rocker AI Core and Roto Grip NanoStar Pearl Reactive\n\nRoto Grip built the Rockstar Amped for length and a strong backend. Specifically, the symmetric Rocker AI Core revs up with a higher RG for added length and stronger direction change, while the NanoStar Pearl cover at a Power Edge polish conserves energy through the fronts and stores it for an aggressive move at the breakpoint. As a result, it clears the heads more easily than the solid Rockstar, then makes a sharper, more angular backend, ideal for medium to medium-heavy oil. The full per-weight specifications are listed below.\n\nA Symmetric Core With Higher RG for Length and Direction Change\n\nAt the heart of the Rockstar Amped is the symmetric Rocker AI Core, the same engine as the solid Rockstar. At 15 lb it measures RG 2.48 and a strong .050 differential, numbers that produce heavy flare and a powerful but readable motion. As a symmetric core, it reads the lane predictably and repeats the same shape shot after shot, giving you strong backend without the layout sensitivity of an asymmetric piece.\n\nOn the Amped, that strong core is paired with a polished pearl cover, so the power comes with extra length and a sharper, more angular finish. The Rocker core's higher RG holds energy through the fronts and changes direction strongly off the dry, which is what gives the Amped its aggressive backend.\n\nA Polished Pearl for Clean Length and an Aggressive Backend\n\nThe Rockstar Amped wraps that core in the NanoStar Pearl Reactive coverstock, finished at Power Edge polish. The pearl additive and polished surface conserve energy through the front of the lane, so the Amped pushes cleanly through the heads, then makes a sharp, aggressive move when it reaches the friction. It reads later and more angular than the sanded, solid Rockstar.\n\nThat length-and-angle shape is what makes the Amped so effective on medium to medium-heavy oil and in transition. When the solid Rockstar starts reading too early, the polished NanoStar Pearl gets the ball down the lane and still finishes with a strong backend. Leave it polished for the most length and angle, or take the surface down at your pro shop for an earlier, smoother read when the oil increases.\n\nRockstar Amped Specs\n\nRG and differential vary by weight. Specifications provided by the manufacturer.\n\nWho This Ball Is Right For\n\n✓Competitive Players: A strong pearl that clears the fronts and finishes with an aggressive, angular backend on medium to medium-heavy oil\n\n✓Higher-Rev Bowlers: The strong Rocker core rewards revs with length and a sharp, hard-driving backend off the dry\n\n✓Stronger Stylists: HP3 power with the cleaner length of a pearl, for oil that has started to transition and open\n\n✓Arsenal Builders: The length-and-angle complement to the solid Rockstar, the pearl you move to as the pattern breaks down\n\nGood to Know Before You Buy\n\n·Strong, aggressive motion: This is a high-flare piece built for traction. If you want a controlled, lower-hook reaction, a lower-differential ball will suit you better.\n\n·Ships polished: The Power Edge (Polished) finish runs clean and long out of the box. For an earlier read on heavier oil, take the surface down at your pro shop.\n\n·Colors vary: Actual colors vary somewhat from the photos shown; no two balls come out of the mold exactly alike.\n\n·Tiny pit holes are normal: A few tiny pit holes in the coverstock are a normal part of the manufacturing process.\n\n·Sold undrilled: Ships without finger holes, so it can be fitted to your hand and span.\n\nBowlersMart Tips: Where the Rockstar Amped Fits in Your Roto Grip Arsenal\n\nWhere It Fits in Your Arsenal\n\nIn the Roto Grip lineup, the Rockstar Amped is the length-and-angle pearl at the HP3 level. Where the solid Rockstar attacks fresher, heavier oil with an early read, the Amped steps in as the lanes transition, clearing the fronts and finishing with an aggressive backend. It pairs naturally just below the solid Rockstar and above your cleaner, weaker pearls and entry-level equipment.\n\nSurface Adjustments\n\nThe Power Edge polish is a length-and-angle setup out of the box. Take the surface down with a lower-grit pad for an earlier, smoother read on more oil, or re-polish to restore length. Have surface changes done at your pro shop for an even, consistent finish.\n\nCoverstock Care\n\nWipe the NanoStar Pearl cover with an approved reactive ball cleaner after every session, and deep clean it periodically. Keeping a polished pearl clean preserves the length and the aggressive backend that define the Rockstar Amped.\n\nEarn points on every Roto Grip purchase through the Striking Rewards loyalty program. Every ball you add to your arsenal builds toward your next reward.\n\nShop With Confidence at BowlersMart\n\nThe Roto Grip Rockstar Amped Bowling Ball ships free with no minimum purchase and is backed by our 60-day return policy. As an authorized Roto Grip dealer, every ball is genuine and covered by the full one-year Roto Grip warranty. Place your order before 2 PM EST and it ships the same day.\n\nWeight\nRadius of Gyration (RG)\nDifferential\n\n16 lbs\n2.48\n.054\n\n15 lbs\n2.48\n.050\n\n14 lbs\n2.50\n.046\n\n13 lbs\n2.58\n.047\n\n12 lbs\n2.64\n.037","policies":[{"text":"Free ground shipping on US orders, no minimum, 48 contiguous states and military APO/FPO. To Alaska, Hawaii, Puerto Rico and Guam bowling balls ship for $24.95 per ball, most other items free; oversized roller bags cost extra there. International orders pay the rate shown at checkout, duties paid locally.","title":"Shipping","source_url":"https://www.bowlersmart.com/shipping-information/"},{"text":"In-stock items ordered by 2PM EST Monday to Friday ship the same day, later orders the next business day. Carriers USPS, UPS, FedEx. Standard delivery 3 to 7 business days; expedited options at checkout.","title":"Processing and delivery","source_url":"https://www.bowlersmart.com/shipping-information/"},{"text":"60 days from delivery for US customers on new, unused items in original packaging, free prepaid return labels. Drilled bowling balls cannot be returned or exchanged. Shoes must have been tried on a clean, dry surface. Manufacturing defects and shipping damage go through the defect claim process.","title":"Returns","source_url":"https://www.bowlersmart.com/return-exchange-policy/"},{"text":"Credit and debit cards, PayPal, Apple Pay, Google Pay, Venmo, Amazon Pay, and buy now pay later through Affirm, Afterpay and Klarna.","title":"Payment","source_url":"https://www.bowlersmart.com/payment-options/"},{"text":"Pro shops inside bowling centers in 10 US states fit, drill and service equipment; a ball bought online can be drilled there.","title":"Pro shops","source_url":"https://www.bowlersmart.com/locations/"},{"text":"www.bowlersmart.com is the only website of BowlersMart. Lookalike domains are fraudulent.","title":"Identity","source_url":"https://www.bowlersmart.com/resources/scam-awareness/"}]}