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Hammer’s got a new way to attack the pin deck with the new Hammer Spike. The Spike uses a high RG, high Differential core system that gives Hammer bowlers a new look at conquering drier lanes. Combining this core with the Taboo Jet Black’s coverstock (GTRIII) in a hybrid version gives the Spike a long move through the front of the lane, with a controlled but aggressive down-lane move.
RG / DIFFERENTIAL