The TSi1 is designed for players with a moderate swing speed, which Titleist defines as under 90 mph with a driver. This driver is designed to help players achieve greater length, higher ball flight and more accuracy. It is up to 40 grams lighter than the standard models, which, together with its club shape, provides increased speed compared to the previous TS1 driver. The face is made from ATI 425 Aerospace titanium, which makes it both durable and capable of delivering high speed and forgiveness at ball impact. In addition, the hosel can be adjusted so that the driver can be optimally adapted to your swing.
