# Radical The Spy Bowling Ball Sold by BowlersMart (www.bowlersmart.com). $104.95 USD. In stock: 16LB, 15LB, 14LB. Checked 2026-10-15 17:34 UTC. Buy: https://www.bowlersmart.com/product/radical-spy-bowling-ball/ ## Facts - Brand: Radical - Category: Asymmetrical Core Bowling Balls > Bowling Balls > Bowling Balls for Straight Bowlers > Bowling Deals - Brand: Radical - Bowling Ball Core Shape: Asymmetrical Core - Bowling Ball Core Name: Radical Spy Core - Bowling Ball Coverstock Type: Plastic - Bowling Ball Cover Name: Radical Textured Polyester - Radius of Gyration: RG (15LB): 2.51 - Differential: Diff (15LB): .053 - Mass Bias Strength: .017 - Flare Potential: 4 - 5 Inches - Surface Finish: 1000 Grit Polish - Preferred Lane Conditions: Dry - Bowling Ball Color: Red - LT Product Category: Bowling Balls - LT Product Subcategory: Entry Level Bowling Balls - Ball Performance Level: Entry Level Novice Bowling Balls, Radical Plastic Bowling Balls - Scent: None - SKU: Radical-Spy - Merchant record last changed: 2026-10-15 07:20 UTC ## Variants | Variant | SKU | Price | Availability | |---|---|---|---| | 16LB | Radical-Spy-16 | $104.95 USD | In stock | | 15LB | RB6010658415 | $104.95 USD | In stock | | 14LB | Radical-Spy-14 | $104.95 USD | In stock | ## Description (merchant text, shortened) A Textured Polyester With a Surprising, Controllable Hook About the The Spy The Radical The Spy is a one-of-a-kind specialty ball that pairs a polyester cover with a real asymmetric core. It combines the asymmetric Spy Core with a Textured Polyester coverstock, so it goes straighter and reads later than a reactive ball, but the strong asymmetric core gives it a surprising, controllable hook at the backend. It is the spare ball that does more than go straight. The Spy is built for bowlers who want a predictable, controllable shape on dry lanes. Polyester reads the lane gently and resists the oil, but the textured surface and asymmetric Spy core add a defined, controllable move that a plain plastic ball cannot make. The result is a durable, affordable ball that holds a true line with a little extra motion when you need it. Understanding the Radical Spy Asymmetric Core and Radical Textured Polyester Radical built The Spy to combine polyester control with a real asymmetric hook. Specifically, the asymmetric Spy Core posts a 2.513 RG, a .053 differential, and a .017 intermediate differential, numbers that give the ball a defined breakpoint for a polyester ball, while the Textured Polyester cover reads the lane gently and resists the oil. As a result, it holds a controllable line with a surprising, predictable move at the backend. The per-weight specifications are listed below. An Asymmetric Core That Adds a Defined Move to a Polyester Ball At the heart of The Spy is the asymmetric Spy Core. At 15 lb it measures a 2.513 RG, a .053 differential, and a .017 intermediate differential, numbers that are genuinely strong for a ball with a polyester cover. The asymmetric core adds a defined, controllable breakpoint that a simple plastic spare ball cannot produce. Radical wraps the Spy core in DynamiCore for added durability and a stronger hitting ball. Because the core is asymmetric, layout has an influence on the reaction, so your pro shop can tune how much motion The Spy makes. The result is a unique ball: polyester control with a touch of real, controllable hook. A Textured Polyester Cover for Control With a Touch of Motion The Spy is finished with a Textured Polyester coverstock at a 500, 1000 Siaair finish with factory compound and polish. Polyester generates far less friction than reactive resin, so The Spy reads the lane gently and holds a controlled line, but the textured surface adds just enough grip to let the asymmetric core make its move. That blend of polyester control and a textured surface is what makes The Spy so unusual: it goes straighter and more predictably than a reactive ball, but it can make a defined, controllable move at the backend. Take the surface down for a bit more grip, or smooth it up for a straighter reaction, with surface changes done at your pro shop. The Spy Specs RG and differential vary by weight. Specifications provided by the manufacturer. Who This Ball Is Right For Full text at the buy link above. ## Shipping, returns, payment (BowlersMart) - Shipping: 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. - Processing and delivery: 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. - Returns: 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. - Payment: Credit and debit cards, PayPal, Apple Pay, Google Pay, Venmo, Amazon Pay, and buy now pay later through Affirm, Afterpay and Klarna. - Pro shops: Pro shops inside bowling centers in 10 US states fit, drill and service equipment; a ball bought online can be drilled there. - Identity: www.bowlersmart.com is the only website of BowlersMart. Lookalike domains are fraudulent. ## Images - 181215269_10157579870966910_5660160606993889099_n: https://www.bowlersmart.com/wp-content/uploads/2021/05/181215269_10157579870966910_5660160606993889099_n.jpg - b58a2cf5-8eff-4ff8-be2e-1bda817c97f7: https://www.bowlersmart.com/wp-content/uploads/2021/05/b58a2cf5-8eff-4ff8-be2e-1bda817c97f7.png JSON: https://ittems.com/bowlersmart/p/radical-spy-bowling-ball.json HTML: https://ittems.com/bowlersmart/p/radical-spy-bowling-ball Merchant index: https://ittems.com/bowlersmart/