Shaft stiffness represents a critical parameter in golf club performance, directly influencing control, accuracy, and trajectory. The comparison between the True Temper ZZ65 and Ping AWT (Ascending Weight Technology) Extra Stiff shafts reveals distinct engineering characteristics affecting their rigidity.
(what shaft is stiffer zz65 or the awt extra stiff)
The ZZ65, part of True Temper’s Dynamic Gold family, is a constant-weight steel shaft averaging 115 grams across the iron set. It features a traditional stiff flex profile, with a mid-high bend point promoting a mid-trajectory ball flight. Material properties and uniform diameter contribute to consistent flex characteristics, but its stiffness is calibrated below the threshold of extra stiff (X-stiff) classifications. While robust for aggressive swingers, it lacks the reinforced tip and butt sections characteristic of dedicated X-stiff designs.
Conversely, the AWT Extra Stiff employs Ping’s proprietary ascending weight architecture: shaft weight incrementally increases from long irons (approximately 109 grams) to short irons (around 124 grams). This weight progression strategically pairs with a stiffer overall flex profile. Crucially, the AWT Extra Stiff incorporates a reinforced tip section and thicker walls in the lower taper region, significantly increasing torsional rigidity and reducing deflection during high-load swings. The design specifically targets reducing spin and lowering trajectory, hallmarks of an authentic X-stiff shaft. Material selection and variable wall thickness engineering further enhance its resistance to deformation compared to the ZZ65.
Empirical frequency matching data supports this analysis. The ZZ65 typically measures between 5.8-6.0 cycles per minute (CPM) under standard clamp lengths, aligning with stiff flex benchmarks. The AWT Extra Stiff consistently records 6.5 CPM or higher, exceeding conventional stiff flex thresholds and validating its classification as a true extra-stiff shaft. This quantifiable difference confirms higher resistance to bending loads in the AWT.
Player feedback corroborates these findings. Golfers with swing speeds exceeding 105 mph report superior stability and reduced dispersion with the AWT Extra Stiff, particularly in short irons where weight concentration amplifies stiffness. The ZZ65, while stable for moderate tempos, exhibits greater tip deflection under extreme loading, confirming its position in a lower flex category.
(what shaft is stiffer zz65 or the awt extra stiff)
Therefore, based on material construction, frequency analysis, weight distribution technology, and on-course performance validation, the AWT Extra Stiff unequivocally demonstrates greater stiffness than the ZZ65. Engineers specify the AWT Extra Stiff for players demanding maximum rigidity to control high swing speeds, whereas the ZZ65 suits those prioritizing consistent weight with moderate stiffness. Selecting between them necessitates matching shaft properties to individual swing dynamics to optimize energy transfer and accuracy.