# Connecting a Speed Sensor

> Follow these steps to connect a speed sensor in Zwift...

Source: https://support.zwift.com/en_us/connecting-a-speed-sensor-ryZdj7beB

Last updated: 2026-07-08T19:49:38.529Z

# Connecting a Speed Sensor

Follow these steps to connect a speed sensor in Zwift.

1.  Launch Zwift and sign in.
2.  Verify your speed sensor awake by spinning the wheel it measures.
    
3.  On the **PAIRED DEVICES** screen, select **SPEED SENSOR**.
    
4.  Select your speed sensor then select **CLOSE**.
    
    Show image
    
    ![Select Your Device](https://content-cdn.zwift.com/support/EN/Cycling/Resources/Images/Cycling - Paired Devices Speed Sensor 1.106.png "Select Your Device")
    
5.  From the **SELECT YOUR TRAINER** screen, select your trainer or rollers, then select **OK**.
    
    Show image
    
    ![Select Your Trainer](https://content-cdn.zwift.com/support/EN/Cycling/Resources/Images/1.39 Cycling Paired Devices - Speed Sensor - Select Trainer.png "Select Your Trainer")
    
    If your trainer isn't listed, it isn't compatible with Zwift. For the most accurate readings, use a compatible direct drive trainer, wheel-on trainer, or power meter.
    
6.  Verify your tire size setting:
    
    1.  From the Home Screen, select your initials, then select **My settings**.
        
    2.  Select the **HARDWARE** tab.
        
    3.  Set **Tire Size** to match your rear tire.
        

## Related Articles

*   [Tire Size Conversion Chart](https://support.zwift.com/tire-size-conversion-chart-HyH6NiQckg)
    
*   [zPower](https://support.zwift.com/zpower-r1XjaXbxr)
    
*   [Compatible Cycling Hardware](https://support.zwift.com/en_us/compatible-cycling-hardware-BkPlq7gr)
    
*   [Connecting a Power Meter](https://support.zwift.com/en_us/power-meters-Bk7hoXWlS)
    

Ride On.

\-The Team at Zwift