# "UH OH!" Flier Speed Detection Warning

> If Zwift detects you're going faster than expected, you'll see the following message at the bottom of your screen. Now that this alert has appeared, these...

Source: https://support.zwift.com/en_us/uh-oh-flier-speed-detection-warning-HkzLoa2MS

Last updated: 2025-03-11T20:55:53.566Z

# "UH OH!" Speed Detection Warning

If Zwift detects you're going faster than expected, you'll see the following message at the bottom of your screen:

![UHOH](https://zwiftdmz-marcom-us-east.s3.amazonaws.com/support/EN/Cycling/Content/Resources/Images/FAQ/UHOH.jpg "UHOH")

Now that this alert has appeared, these things will happen:

*   Previous leaderboard entries logged during your session will be removed.
*   You will not show up on the leaderboards for the next hour—even if you start a new session.
*   Any leaderboard jerseys will be removed.
*   The alert will appear both above your head and next to your name on the friends list for the remainder of the ride.
    
    ![Flier Warning](https://zwiftdmz-marcom-us-east.s3.amazonaws.com/support/EN/Cycling/Content/Resources/Images/Troubleshooting/FLIER.jpg "Flier Warning")
    
*   Your speed will be cut to a reasonable rate.

If you’re actually a pro cyclist, contact our [Community Support team](https://www.zwift.com/contact-us "Community Support team") and let us know! If you're not, you probably need to adjust your setup.

## Fixing Your Setup

If you're using a wheel-on trainer, whether with a [Speed and/or Cadence Sensor](https://support.zwift.com/en_us/speed-and-or-cadence-sensors-ryZdj7beB "Speed and/or Cadence Sensor") or a [Power Meter](https://support.zwift.com/en_us/power-meters-Bk7hoXWlS "Power Meter"), the first thing to do is to make sure that it's [set up right](https://support.zwift.com/en_us/zpower-r1XjaXbxr). Our [zPower](https://support.zwift.com/en_us/zpower-r1XjaXbxr) calculations are based on specific trainers, so you can accidentally reach superhuman speeds if you set up your trainer incorrectly.

If you're using a trainer that can be calibrated, check the following:

*   You've calibrated your trainer.
*   Tightened your trainer appropriately.
*   Placed it within 3 feet of your ANT+ dongle (if applicable).

Ride On.

\-The Team at Zwift