# VehicleSteering

> Talos 0.7 · Since 0.6

Steering geometry and feel.

Absent entirely is the same as authoring every default, so a vehicle that says nothing here still steers.

## Fields

| Field | Type | Required | Default | Allowed values | Description |
|---|---|---|---|---|---|
| `maxAngle` | `number` | no | `0` |  | Steering lock in RADIANS at a fully steered wheel, greater than zero — the angle a wheel with steerable 1 reaches at full input. 0.6 rad is about 34 degrees, normal for a car; a long-wheelbase van turns less and a go-kart more. Defaults to 0.6. This is the number that decides a vehicle's turning circle, so it is worth authoring per class rather than taking the default. |
| `rate` | `number` | no | `3` |  | How fast the steer angle may change, in radians per second, greater than zero. It is what stops a keyboard or a stick snapping to full lock in a single tick; a wheel controller wants a high value so the input passes through unfiltered. Defaults to 3. |
| `speedReduction` | `number` | no | `0` |  | How much of maxAngle is taken away at speedReductionAt, 0..1. 0.35 leaves the lock at 65% of its standing-still value there, which is what keeps a vehicle from spinning on a motorway twitch. 0 disables the reduction. Defaults to 0.35. |
| `speedReductionAt` | `number` | no | `40` |  | The speed in METRES PER SECOND at which speedReduction is fully applied, greater than zero; below it the reduction scales down in proportion. 40 m/s is about 90 mph. Defaults to 40. |