{"merchant":{"slug":"bowlersmart","name":"BowlersMart","domain":"www.bowlersmart.com"},"id":"982116","sku":"HAM-EFF-TOU","gtin":null,"name":"Hammer Effect Tour Bowling Ball","brand":"Hammer","categories":[{"name":"Asymmetrical Core Bowling Balls","slug":"asymmetrical-core-bowling-balls"},{"name":"Bowling Ball Deals","slug":"bowling-ball-deals"},{"name":"Bowling Balls","slug":"bowling-balls"},{"name":"Bowling Balls for Two-Handed Bowlers","slug":"two-handed-bowling-balls"},{"name":"Bowling Brand","slug":"brands"},{"name":"Bowling Deals","slug":"bowling-deals"},{"name":"Hammer","slug":"hammer"},{"name":"Hammer Bowling Balls","slug":"hammer-bowling-balls"},{"name":"Heavy Oil Bowling Balls","slug":"heavy-oil-bowling-balls"},{"name":"High Performance Bowling Balls","slug":"high-performance-bowling-balls"},{"name":"Solid Reactive Bowling Balls","slug":"solid-reactive-bowling-balls"}],"buy_url":"https://www.bowlersmart.com/product/hammer-effect-tour-bowling-ball/","pages":{"html":"https://ittems.com/bowlersmart/p/hammer-effect-tour-bowling-ball","md":"https://ittems.com/bowlersmart/p/hammer-effect-tour-bowling-ball.md","json":"https://ittems.com/bowlersmart/p/hammer-effect-tour-bowling-ball.json"},"price":{"min":169.95,"max":169.95,"currency":"USD"},"availability":"instock","checked_at":"2026-10-15T19:04:39.652326+00:00","source_updated_at":"2026-10-15T17:32:23+00:00","summary":"What should I know about the Effect Tour? Lower-differential Huntsman Tour Core for moderate flare and a controllable read TourV3 Solid cover at a 1500-grit finish for a clean midlane read A controllable, tour-tuned Effect for medium to heavy oil","specs":[{"key":"Brand","value":"Hammer"},{"key":"Release Date","value":"November 2024"},{"key":"Bowling Ball Coverstock Type","value":"Reactive"},{"key":"Bowling Ball Cover Name","value":"Hammer TourV3 Reactive"},{"key":"Bowling Ball Core Shape","value":"Asymmetrical Core"},{"key":"Bowling Ball Core Name","value":"Hammer Huntsman Tour Core"},{"key":"Radius of Gyration: RG (15LB)","value":"2.47"},{"key":"Differential: Diff (15LB)","value":".036"},{"key":"Mass Bias Strength","value":".012"},{"key":"Flare Potential","value":"4 - 5 Inches"},{"key":"Surface Finish","value":"1500 Grit"},{"key":"Preferred Lane Conditions","value":"Medium - Heavy Oil"},{"key":"Bowling Ball Color","value":"Blue"},{"key":"Ball Performance Level","value":"Hammer Upper Mid Performance Bowling Balls, High Performance Bowling Balls"}],"variants":[{"sku":"HAM-EFF-TOU-16","gtin":"840315615458","label":"16LB","price":169.95,"stock":5,"options":{"Ball Weight":"16LB"},"availability":"instock","regular_price":279.95},{"sku":"HAM-EFF-TOU-15","gtin":"840315615465","label":"15LB","price":169.95,"stock":1,"options":{"Ball Weight":"15LB"},"availability":"instock","regular_price":279.95},{"sku":"HAM6010821514","gtin":"840315615472","label":"14LB","price":169.95,"stock":6,"options":{"Ball Weight":"14LB"},"availability":"instock","regular_price":279.95},{"sku":"HAM-EFF-TOU-13","gtin":"840315615489","label":"13LB","price":169.95,"stock":13,"options":{"Ball Weight":"13LB"},"availability":"instock","regular_price":279.95},{"sku":"HAM-EFF-TOU-12","gtin":"840315615496","label":"12LB","price":169.95,"stock":9,"options":{"Ball Weight":"12LB"},"availability":"instock","regular_price":279.95}],"images":[{"alt":"hammer-effect-tour-ball-nov2024","url":"https://www.bowlersmart.com/wp-content/uploads/2024/11/hammer-effect-tour-ball-nov2024.jpg"},{"alt":"Hammer Effect Tour Bowling Ball Core 14 15 and 16lb","url":"https://www.bowlersmart.com/wp-content/uploads/2024/11/Hammer-Effect-Tour-Bowling-Ball-Core-14-15-and-16lb.png"},{"alt":"Hammer Effect Tour Bowling Ball Core 12 and 13lb","url":"https://www.bowlersmart.com/wp-content/uploads/2024/11/Hammer-Effect-Tour-Bowling-Ball-Core-12-and-13lb.png"}],"release_date":"November 2024","description":"A Lower-Differential, Tour-Tuned Effect\n\nAbout the Effect Tour\n\nThe Hammer Effect Tour is the controllable, tour-tuned member of the Effect line. It pairs the asymmetric Huntsman Tour Core with the TourV3 Solid coverstock, delivering the Effect's defined shape with a lower differential for a smoother, more controllable read on medium to heavy oil. It is built for the precision the best players demand.\n\nThe Effect Tour takes the Effect design and tunes it for control. The lower-differential Huntsman Tour version of the core produces less flare and a more even, predictable motion, while the TourV3 Solid cover reads the midlane cleanly. The result is a controllable, tour-style Effect for bowlers who want shape without an overly strong backend.\n\nUnderstanding the Hammer Huntsman Tour Core and Hammer TourV3 Solid Reactive\n\nHammer built the Effect Tour for a controllable, tour-tuned read on medium to heavy oil. Specifically, the asymmetric Huntsman Tour Core posts a 2.472 RG, a .036 differential, and a .012 intermediate differential, numbers that produce moderate flare and a smooth, defined breakpoint, while the TourV3 Solid cover at a 1500-grit finish reads the midlane cleanly. As a result, it gives you the Effect's shape with a more controllable motion. The per-weight specifications are listed below.\n\nA Lower-Differential, Tour-Tuned Version of the Huntsman Core\n\nAt the heart of the Effect Tour is the asymmetric Huntsman Tour Core, a lower-differential, tour-tuned version of the Huntsman block. At 15 lb it measures a 2.472 RG, a .036 differential, and a .012 intermediate differential, a combination that produces moderate flare and a smooth, defined breakpoint. The lower differential is what separates it from the standard Huntsman: less flare and a more controllable, even motion.\n\nBecause the core is asymmetric, layout has a strong influence on the reaction, so your pro shop can tune the pin and intermediate differential to your game. That tour-tuned control is exactly what advanced players look for in a benchmark asymmetric.\n\nA Controllable Solid Cover for a Clean, Even Read\n\nThe Effect Tour wraps that core in Hammer's TourV3 Solid Reactive coverstock at a 1500-grit finish. The TourV3 solid reads the midlane evenly and controllably, so the ball gets down the lane and makes a predictable, defined move rather than a sharp or early reaction.\n\nThat clean, controllable read paired with the low-differential core is what gives the Effect Tour its tour-style precision: shape and traction without an overly strong backend. Leave it at the 1500-grit box finish for a controllable read, take the surface lower for more traction, or polish it up for more length when the lanes dry.\n\nEffect Tour Specs\n\nRG and differential vary by weight. Specifications provided by the manufacturer.\n\nWho This Ball Is Right For\n\n✓Tournament Players: A controllable, tour-tuned Effect with a lower differential for medium to heavy oil\n\n✓Control Players: The Effect shape with moderate flare and a smooth, predictable backend\n\n✓Higher-Rev Bowlers: A lower-differential asymmetric that gives revs a controllable, even motion rather than a sharp flip\n\n✓Arsenal Builders: The controllable, tour-style Effect to pair below the stronger standard Effects\n\nGood to Know Before You Buy\n\n·Ships sanded for traction: The 1500 Grit finish is built to grip in oil. Polish it for more length when the volume drops.\n\n·Asymmetric layout sensitivity: Layout choices shift the reaction more than on a symmetric ball. Match the pin and mass bias to your game with 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 Effect Tour Fits in Your Hammer Arsenal\n\nWhere It Fits in Your Arsenal\n\nIn the Hammer lineup, the Effect Tour is the controllable, tour-tuned Effect. Its lower-differential core reads smoother and more even than the standard Special and Maximum Effect, so it is the piece you reach for when you want the Effect shape with more control. Step up to the standard Effects when you need more flare and a stronger backend.\n\nSurface Adjustments\n\nThe 1500-grit finish gives the Effect Tour its clean, controllable read. Take the surface lower for more traction on heavier oil, or polish it up for more length when the lanes dry. Have surface changes done at your pro shop for an even, consistent finish.\n\nCoverstock Care\n\nWipe the TourV3 cover with an approved reactive ball cleaner after every session, and deep clean it periodically. Keeping the cover fresh preserves the clean, controllable read that defines the Effect Tour.\n\nEarn points on every Hammer 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 Hammer Effect Tour Bowling Ball ships free with no minimum purchase and is backed by our 60-day return policy. As an authorized Hammer dealer, every ball is genuine and covered by the full one-year Hammer warranty. Place your order before 2 PM EST and it ships the same day.\n\nWeight\nRadius of Gyration (RG)\nDifferential\nMass Bias\n\n16 lbs\n2.485\n.032\n.011\n\n15 lbs\n2.472\n.036\n.012\n\n14 lbs\n2.489\n.036\n.012\n\n13 lbs\n2.597\n.041\n.014\n\n12 lbs\n2.593\n.041\n.014","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/"}]}