The RAD SPEED XB Driver features an oversized head shape and back-biased Radial Weighting for the longest and most forgiving ball flight with low spin. The back-biased Radial Weighting system positions 20g of weight in the back of the head for more forgiving performance. The new Carbon Wrap Crown system is 30% thinner to create extra weight that can be repositioned to optimize swing performance. A refined T-Bar Speed Chassis is lighter and allows for even more redistributed weight towards the front in order to decrease spin and increase ball speed. An infinity edge CNC Milled face expands the milled area by 95%, increasing the zone of maximum ball speed.