Shaft Stiffness

[HeathWoodruff]

I know that not all shafts with the same flex are the same stiffness, but i was wondering where you could find a chart or graph or something like that with all the shafts as well as how they compare stiffnesswise to other shafts

[WUTiger]

This is the chart you want from GolfWRX.com. It compares DG, PX and KBS shafts on FCM* ratings.

http://www.golfwrx.com/forums/topic/496072-new-and-improved-shaft-chart/

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* FCM stands for Frequency Coefficient Matching. The FCM system is based on cycle per minute (CPM) data from golf shaft oscillation tests. The higher the cycles per minute, the stiffer the shaft. CPM of 258 (oscillations per minute) would yield a FCM of 5.8... drop the 2, and convert the remainder into a two-digit decimal. Incidentally, 5.8 is the FCM of a DG S300 shaft.

FCM allows shaft flex comparisons across different models and manufacturers. If you want the science class details, check this site: http://forums.iseekgolf.com/forums/13-golf-equipment/topics/48696-shaft-flex-scalesfcm-cpm-or-rifle?page=1