The key technology in the new Ultra line, PowerProfile geometry encompasses three geometrical enhancements designed to boost stability and generate even easier power off the strings. These three geometrical enhancements include the following: Integrated PWS, Sweet Spot Channel and Inverted Power Rib.
Integrated PWS takes the volume of the current PWS (Perimeter Weighting System) and blends it over a larger area to open up the string bed, allowing for more power off the strings while maintaining stability.
The Sweet Spot Channel features a cavity on the inside of frame to extend cross strings by 3.5mm for more power and responsiveness off the string bed.
Inverted Power Rib throat geometry increases torsional stability for easier power and reduced frame twisting.