Graphene Spark 2017 racket head is a limitless powerful racket thanks to its rubber Power Foam and Graphene. Technologies: – Flexible chassis: The flexible chassis is a tubular construction to achieve a more gentle union with the rubber and thus obtain a greater comfort. This tubular, manufactured pre-moulded carbon layers is designed bearing in mind the different areas of the frame to provide greater or lesser rigidity to each area according to its requirements. As a result, the frame is rigid in areas or greater torsion and it is flexible in areas which require a greater comfort. - CHIP: A new design with holes of various sizes along with the C-Ring system provides two extra benefits: Greater tolerance, comfort and control, and greater rigidity on impact (greater power). - Power foam rubber: Larger cells made from softer rubber, treated with Nitrogen for a limitless power. The new rubber is designed from N2 rubber, but with a greater density and faster sound and playing memory. - VIBRA top: two pieces made from a special silicone, included in the frame of the racket. The result is that the impact of the ball creates fewer vibrations. - CRT Control Ring where the central area of HEAD CRTTM technology is an elastomer placed between the frame and the foam, providing greater comfort.
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