> For the complete documentation index, see [llms.txt](https://riduck.gitbook.io/riduck-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://riduck.gitbook.io/riduck-guide/english/browse/settings/max-hr.md).

# Adjust Max Heartrate

{% hint style="info" %}
This feature is provided for specific users and special cases. Changing settings without a proper understanding may cause most of the features provided by Riduck to not work correctly.
{% endhint %}

If you need to change your Max Heartrate, you can do so by going to the **Settings** > **Activity** menu.

<figure><img src="https://2352761052-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjRC3E2CZmJKDmDzgyBKM%2Fuploads%2F89aAZu0Vcw1dHNiMHCyp%2F%EC%8A%A4%ED%81%AC%EB%A6%B0%EC%83%B7%202024-05-24%20104633.png?alt=media&amp;token=cd56c795-9381-4c29-ac4a-27d68c6dd9bc" alt=""><figcaption></figcaption></figure>

## Automatic Configuration

\[Recommended Settings]&#x20;

Based on synchronized riding activity data, the maximum heart rate is detected and displayed.

## Manual Configuration

If there has been no activity in the last 12 weeks that reached your maximum heart rate, if the heart rate monitor is malfunctioning, or if you've experienced a significant decline in performance, you can manually adjust your maximum heart rate.

Change to "Manual" and set the separately measured maximum heart rate, and press the update button below.