Brunswick Crown 78U Purple/Grey Solid Urethane Bowling Ball

Crown 78U Brunswick introduces the Crown 78U, giving bowlers a new urethane option approved for use in most USBC national competitions. In addition to these regulations, Brunswick recognizes the use of harder urethane balls on tougher tournament patterns and for high rev rates. They developed a new urethane ball with more flare potential and more dynamic numbers to meet the needs of those bowlers. The new Crown 78U features the Tiered Hexagon core shape from the Crown Victory, a higher RG and medium differential core, providing bowlers with an option not currently available on the market. The harder 78 durometer urethane cover has limitations that a more dynamic core helps alleviate, creating a new level of ball motion option for bowlers using urethane.   Core Numbers 16 lb 15 lb 14 lb 13 lb 12 lb RG 2.577 2.549 2.566 2.574 2.597 DIFF 0.039 0.046 0.046 0.040 0.040 Spec Table Spec Label Spec Value Level Advanced Part Number 60-108363-93X Color Purple / Grey Core Tiered Hexagon Coverstock Urethane Solid 78D Cover Type Urethane Finish 500, 1000 Siaair Micro Pad Weights 16-12 lbs. Warranty Two years from purchase date Release Date December 11, 2025