In introducing their RAZR Fit Xtreme driver, Callaway engineers said they have added several new technologies to improve overall performance over its predecessor, the RAZR Fit.
The one they cited first – and with the greatest enthusiasm – is called Speed Frame Face, and it is designed to optimize stiffness and stress distribution across the titanium clubface for a larger, more consistent sweet spot and an even more efficient energy transfer. In theory, that results in great ball speed, and as a consequence, greater distance.
According to Dr. Alan Hocknell, senior vice president for research and development at Callaway, the Speed Frame Face also saves weight that is redistributed in the clubhead to improve the Center of Gravity (CG) position and maximize Moment of Inertia (MOI) for better ball flight and forgiveness. In addition, the face features a tighter bulge radius than its predecessor for a more preferred look at address.
Hocknell says that improvements in CG in this driver also come as a result of Callaway once again employing Forged Composite in the crown, for the lightweight material gives it another way to redistribute mass to more desired positions.
In addition, the equipment maker utilizes a pair of OptiFit technologies to enhance adjustability. The OptiFit hosel allows players to adjust the face angle to open, square or close for better accuracy and trajectory, as well as their preferred look at address, while the OptiFit weights shift the club’s CG to promote noticeable draw or neutral ball flights.
Finally, the RAZR Fit Xtreme comes in more lofts that incorporate a greater range of face-angle options, CG biases and CG height difference than its predecessor. Also, Callaway has looked to bolster performance through another form of customization: the 8.5-, 9.5- and 10.5-degree clubheads are 440cc in size, while the 11.5 and 13 HT are 460cc.
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