The Titleist TSi4 driver is offered in 3 factory lofts from 8° to 10°, a 2° moderate loft window. The 8° head is the stronger option, while 10° adds 2° of static loft for a higher launch starting point.
TSi4 Driver Loft Chart
| Club | Loft | Gap |
|---|---|---|
| 8° head | 8° | — |
| 9° head | 9° | 1° |
| 10° head | 10° | 1° |
Range: 8°–10° (2° total span).
Gapping: Every adjacent loft is spaced by 1°.
TSi4 Driver loft flight map
The bars place each factory head on the same driver-loft scale, so the visual difference is not exaggerated. Lower loft generally favors a flatter launch and less spin; higher loft generally adds launch, spin and carry height.
TSi4 vs other Titleist driver lofts
| Model | Reference | Loft | Difference |
|---|---|---|---|
| TSi4 | 8° head | 8° | This model |
| 905R | 7.5° head | 7.5° | 0.5° lower loft |
| 905S | 7.5° head | 7.5° | 0.5° lower loft |
| GT2 | 8° head | 8° | Same loft |
| GT3 | 8° head | 8° | Same loft |
How each TSi4 Driver loft changes the shot
| Club | Loft | What that loft changes |
|---|---|---|
| 8° head | 8° | This is an extremely strong driver loft, built around a very low static-loft starting point. Compared with the other heads here, expect launch, spin and peak height to generally rise as you move upward in loft. |
| 9° head | 9° | This is a strong driver loft, favoring a flatter launch window. Compared with the other heads here, expect launch, spin and peak height to generally rise as you move upward in loft. |
| 10° head | 10° | This sits near the middle of the common driver-loft range and is the neutral starting point in this lineup. Compared with the other heads here, expect launch, spin and peak height to generally rise as you move upward in loft. |
Static loft is the starting point, not the final ball flight. Delivered loft, strike location and hosel setting can move launch and spin enough that two golfers using the same head loft can get very different results.
Titleist TSi4 loft FAQs
What lofts does the Titleist TSi4 come in?
The listed factory lofts are 8°, 9° and 10°.
What is the loft range of the TSi4?
It runs from 8° to 10°, a total span of 2°.
How much does one loft step change the TSi4?
The typical factory step is 1°. That is enough to change the launch and spin starting point, but delivered loft and strike can easily matter just as much.
Which TSi4 loft should launch highest?
The 10° head has the most static loft and should generally launch highest, all else equal.
Is the lowest-loft TSi4 automatically the longest?
No. Too little loft can reduce carry if launch gets too low or strike quality falls off. The longest setup is the one that produces the best launch, spin and contact for your delivery.
Spec & fitting disclaimer: Loft can vary by year, region, handedness or custom setup. Adjustable hosels and bending can also change playing loft. Verify your exact club before adjusting or ordering replacements.