This Project XLZ 50 shaft would be made especially for Callaway and the only specifications I have would be what Callaway lists on their web site. The Lite flex is listed at 54 grams, low/mid torque, and mid kick point. Depending on which 55 gram R flex you have been playing the XLZ 50 Lite flex will likely play more flexible. The only way you will know for sure if this new shaft is to flexible for you is to hit some shots or play with this driver.
Date published: 2016-09-28