How to Tell the Flex on a Nike SQ Sumo 460 Lucky 13 Driver

Nike designed its non-tour SasQuatch drivers in both "Lucky 13" and "Sweet 16" models. The 13 and 16 refer to the loft of the driver head, making both clubs more lofted than the 8- to 10-degree tour drivers. Since the "Lucky 13" driver is already meant for golfers with a weak swing, usually seniors, the shaft flex is also designed accordingly. Most "Lucky 13" Nike drivers come standard with a Diamana senior (A) flex shaft, but regular (R), stiff (S) and extra stiff (X) shafts are available.

Instructions

    • 1

      Locate the written information on the shaft. If the shaft was installed professionally, the written information should be on the back side, opposite the visible side when addressing the ball.

    • 2

      Locate the specific letter indicating the shaft flex. This letter will be "A," "R," "S" or "X." This letter is usually standing alone and easy to recognize.

    • 3

      Determine the flex of the shaft by the letter you locate in step 2. "A" flex is the weakest flex available and is ideal for golfers with a 70 to 85 mph swing speed. "R" flex is average and ideal for 80 to 95 mph swings, "S" is a more advanced flex suitable for 90 to105 mph swings, while "X" should be used by professionals with a swing speed of 105 mph and more.