Purpose
Calculate the steering-axis angle viewed from the front of the vehicle.
How it works
What the software does.
SAI is calculated during the caster sweep from the relationship between steering movement and wheel-angle change.
When to use
Where it fits in the workflow.
Use as a diagnostic value when checking bent or displaced steering and suspension components.
Benefits
Practical value in the alignment bay.
- Adds diagnostic information beyond adjustable angles
- Supports left-to-right comparison
- Works with included angle analysis
Related alignment analysis functions