> For the complete documentation index, see [llms.txt](https://docs.velogicfit.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.velogicfit.com/section-02-using-velogic-studio/road-metrics.md).

# Road metrics

Reference guide for joint angle, movement quality, and position metrics used in Velogic Studio for road bike fitting.

Our system offers an extensive range of metrics. Using 3D data well requires combining multiple factors in your decision making. Here is some guidance for "orthodox" positions.

## Joint Angle Metrics

| Metric         | Range                                     |
| -------------- | ----------------------------------------- |
| Ankle Angle    | Average 100-130, range < 30               |
| Knee Angle     | Max 140-145, Min >68                      |
| Hip Angle      | Max 90-105, up to 120 if rider has issues |
| Shoulder Angle | Average 75-100                            |
| Elbow Angle    | Average 155-170                           |
| Torso Angle    | 35-40 for Elite, 40-50 general, 50+ rare  |

## Movement Quality Metrics

| Metric                  | Average Range | Good Range |
| ----------------------- | ------------- | ---------- |
| Knee Lateral Travel     | <40           | <20        |
| Knee Travel Angle       | <8            | 0-2        |
| Hip Vertical Travel     | <40           | <15        |
| Hip Horizontal Travel   | <40           | <10        |
| Ankle Swivel            | <10           | \~5        |
| Shoulder Lateral Travel | <40           | \~20       |

## Position Metrics

| Metric         | Range (Road) |
| -------------- | ------------ |
| Knee over foot | 0 to -40     |
| Sitting angle  | 72 to 76     |

> **Note:** Sitting angle is measured with reference to the bottom bracket, which is established during bike measurement. If you haven't yet taken bike measurements, sitting angle will not be shown.