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Propel Pearl Coverstock

Introducing Propel Pearl coverstock, the next extension in Brunswick coverstock technology. Propel Pearl is an evolutionary coverstock developed by Brunswick to improve the mid-lane and backend traction of the ball on today’s slicker oils and lane surfaces. The Propel Pearl coverstock was discovered through testing of new formulation additives and process changes in coverstock manufacturing.

MACE Core

Mechanical Asymmetric Core Engineering. The MACE core has three major benefits: ultra low RG core system to engage the Propel Pearl coverstock, high RG differential to aid in traction through heavy oil and high RG asymmetric differential to quicken the response time to friction. Designed as a two-component elliptical core system, the MACE core is dynamically the strongest asymmetric core ever produced for a Brunswick ball.

Ball Motion

The Evil Siege unites the new Propel Pearl coverstock and the proven MACE core to produce a ball motion that is strong in the mid-lane and aggressive on the backend. The Evil Siege is the ball when your game needs help battling medium to oily conditions and poor pin action.

Reaction Setup

The Evil Siege can be drilled using the standard drilling techniques developed for asymmetric bowling balls. Please visit brunswickbowling.com/drilling_information to view the drilling instructions for specific reaction characteristics and layout details.

Light weight Engineering

The unique core shape of each Brunswick ball is used for weights from 14 to 16 pounds. This approach to lightweight ball engineering provides bowlers with consistent ball reaction characteristics across this weight range. The same drilling instructions can be used for 12- and 13-pound balls. This is because Brunswick uses a generic core shape with an RG differential that is close enough to the 14-16 pound shape.

COLOR: Red/Black Pearl
COVERSTOCK: Propel Pearl Cover
FACTORY FINISH: 4000 Abralon® Sanded
AVAILABLE WEIGHTS: 12-16
HOOK: 160
LENGTH: 110
14 lb RG (2.53) Diff (.056)
15 lb RG (2.51) Diff (.056)
16 lb RG (2.50) Diff (.056)