Product Description
Storm’s Norm Duke Clear is a limited-edition polyester spare ball designed to go straight and true, paying tribute to Hall of Famer Norm Duke with a clean, transparent look and embedded graphic.
Built with a durable clear polyester coverstock and polished to a 3500-grit finish, this ball minimizes friction for a long, straight path that excels at spares or for straighter-line bowlers on dry conditions. The symmetric Hex Core keeps the motion predictable and controllable, giving both beginners and advanced players a reliable option when they need to take the lane pattern out of play. Clear construction with blue accents and a Norm Duke tribute graphic makes it stand out on the rack while celebrating one of the sport’s all-time greats.
This ball is offered as a one-time, limited-edition release, available in 14 & 15 lb weights and classified at the entry-level performance tier, making it an ideal dedicated spare ball or straight-ball option in any arsenal.
Color: Blue *Please note that colors may slightly vary from image shown
Coverstock: Clear Polyester
Weight Block: Hex Core
Factory Finish: 3500 Polished
Flare Potential: Low
Radius of Gyration (RG): 2.66
Differential (Diff): .018
Intermediate Differential (Mass Bias): 0.000
| Weight | RG | Diff. | Interm. Diff. |
|---|---|---|---|
| 16 | 2.62 | 0.018 | 0.000 |
| 15 | 2.66 | 0.018 | 0.000 |
| 14 | 2.73 | 0.018 | 0.000 |
