So you have already found the right racquet for you in the Speed but you would like to fine-tune it a little to get even more out of it? Then the Adaptive kit for the Speed Adaptive is the perfect solution for you! The racquet comes with a pre-set 16/19 string pattern and in a standard length, but its true potential lies in its adaptability. You can use this Adaptive Tuning Kit to adapt the racquet to your individual needs. The weight, balance, length and string pattern can all be personalized using the three additional grommet sets (heavy 16/19, heavy and light 16/16), three spacer rings, and one heavy end cap that clicks into position. This kit make the HEAD Graphene Touch Speed Adaptive a racquet tuner's dream.