Titleist TSR1 Driver The TSR1 is a 460cc driver with maximum power and a traditionally sized, moldable polyurethane face that delivers higher ball speed and less spin. The clubhead features Variable Face Thickness (VFT) to control the dispersion of the shot and promote higher ball launch, while the low center of gravity increases MOI by placing the majority of the weight further back in the clubhead. These technologies provide longer, straighter shots than any other 460cc driver on the market. TSR1 drivers were designed with speed in mind for every type of player. These drivers feature MMT SpeedMesh shafts that weigh less than 40 grams in all bends and provide ultra-light speed paired with incredible stability and energy transfer at impact.