| Wilson K Factor Six One Tour 90 Review |

Subtle revisions in design, when added together and taken as a whole, can often result in big changes in performance. Roger Federer’s new racquet, the Wilson KSix-One Tour 90 is a case in point.
While at first glance it may look like the changes from nCode to KFactor may have happened in the material build up, a close inspection of the KSix-One Tour 90 reveals some other





