For the best string that suits your game always refer to our information box under 'String Types / Tensions' on the left of screen. For more in depth information on each individual string look under 'Tennis String' in the categories menu.
TECHNOLOGIES GET INDIVIDUAL.
YouTekTM combines superior technologies to perfectly match your individual needs. Whether your game is aggressive and adventurous or consistent and smooth, YouTekTM enhances your performance and brings out the best in you.

YouTekTM

d3oTM



Teflon®

REWARD YOUR SPONTANEITY WITH d3oTM.
HEAD lay-up with smart material.
d3oTM belongs to the "smart materials" category, which is a futuristic material with abnormal behavior characteristics. More specifically, d3oTM belongs to a subcategory of "dilatant foams", which dramatically change their behavior under dynamic loading or impact. Integrated in the lay-up and positioned in the shaft of the racquet, d3oTM offers new possibilities for tennis players.
The d3oTM technology is able to sense the needs of the players during different strokes (it's able to adapt to you). on high-speed impacts (aggressive shots), the smart molecules lock together within nanoseconds and dramatically increase the stiffness of the whole racquet frame to provide maximum power. On slow-speed impacts (slice or drop shots), the d3oTM molecules absorb the impact to provide a softer touch for better feel. What does this mean to a tennis player? Passing shots are even harder and drop shots more precise, rewarding your spontaneity and supporting your courageous decisions.
REDUCE YOUR FRICTION TO BOOST YOUR POWER.
HEAD grommets with Teflon friction-reducing polymer.
Friction is a force that holds back the movement of a string when it comes into contact with a grommet. The new HEAD Grommets with Teflon® friction reducing polymer creates a self-lubricating effect in the base material, allowing the strings to slide through the grommets with nearly no friction for much less energy loss and much more power.
Conventional Grommets
Friction is present between the grommet and the string providing some degree of resistance during ball impact resulting in energy loss and less power.
HEAD Grommets with Teflon® friction reducing polymer
The Teflon® friction reducing polymer provides a low-friction contact surface, enabling the strings to slide through the grommets with nearly no friction. Moving
without resistance, the strings maintain their energy during ball impact, providing more power.
During the stringing process, the Teflon® friction reducing polymer in the grommet system allows more even and consistent tension. The HEAD grommet system takes
this friction away allowing a more true tension providing larger sweetspot!
Teflon® is registered Trademark of DuPont® and is used under license by HEAD SPORT AG starting
January 1st, 2009.
Review;
The Head Speed Pro racquet, as advertised, is used by Novak Djokovic. This racquet's all about, stability, control & precision accuracy and best used by advanced players to get maximum benefits. A nice heavy stick that can work sharply through the hitting zone makes baseline work easy however the Speed Pro's stengths at the net is just as defining. Volleys feel nice and clean with control and accuracy again the main standout. Serving also provides top notch accuracy with spin no problem thanks to the more rounded head.