Radical The Spy Bowling Ball

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.

BowlersMart Tips: Where The Spy Fits in Your Radical Arsenal

Shop With Confidence at BowlersMart

The Radical The Spy Bowling Ball ships free with no minimum purchase and is backed by our 60-day return policy. As an authorized Radical dealer, every ball is genuine and covered by the full one-year Radical warranty. Place your order before 2 PM EST and it ships the same day.

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