The Ki-5X brings all the great benefits of the Ki-5 into an extended length version that is excellent for players with two-handed backhands or players who like the advantage of a longer frame on serves.
Ionic AKS adds a 56% efficiency boost to Kinetic Technology. The Ki 5 combines the breakthrough technology of AKS with and even more remarkable material called Jetron.
Kinetic: A strip of pods containing hundreds of tiny lead bearings is incorporated inside of the racquet frame during production. If you shake the racquet it sounds almost like sand inside the frame. This strip creates a secondary energy source, reduces shock & dampens vibration, and provides exceptional torsional stability. Simply put Kinetic is better shots, more often, with less pain!
Ionic: Ionic technology delivers advancement to the famed Kinetic Technology adding a Jetron fill to the chambers. Jetron is a remarkable inelastic composition of ionizing carbon structures used as a coating for the Kinetic mass and chambers, creating a completely clean and unique feel of pure atomic energy.