TubeWitch iconTUBEWITCH

First ride setup

Go from install to live pressures in a few simple steps

TubeWitch setup is for riders who already own Quarq TyreWiz 1.0 or 2.0 sensors, Quarq TyreWiz for Moto sensors, or Zipp 303 SW wheels and want that tire pressure data on a Garmin device. TubeWitch stores the sensor IDs and display behavior, while the SRAM app still controls the target pressure on the sensors themselves.

TubeWitch setup centers on sensor ID entry, device restart, adding the field to a data screen, and confirming live pressure from both wheels before the ride.

Quick Checklist Settings Reference
TubeWitch sensor ID setup
Enter only the numeric part of each TyreWiz sensor ID

Quick setup checklist

  1. Install TubeWitch using the Garmin Connect IQ mobile app.
  2. Fully reboot the Garmin device and restart the Connect IQ mobile app.
  3. In the Connect IQ mobile app, open TubeWitch settings and enter the numeric part of each sensor ID.
  4. Add the TubeWitch data field to a data page, start an activity, and rotate your wheels.
  5. Confirm your live pressures.
View Sensor ID Demo
TyreWiz sensor ID entry in TubeWitch Connect IQ settings

See sensor ID entry in motion

This demo shows how to open TubeWitch settings in the Garmin Connect IQ mobile app and enter the front and rear TyreWiz sensor IDs.

Enter only the numeric part of each sensor ID in TubeWitch settings. For example, if the sensor ID is HGL12345, enter 12345.

View Sensor ID Demo

If sensor IDs or other settings are not being saved by the Garmin Connect IQ mobile app, try entering one sensor ID first and saving immediately before entering the second. Garmin's settings flow can be a little tricky on some older devices when changing many settings all at once.

Two separate jobs

What goes in TubeWitch vs. what stays in SRAM

  • TubeWitch stores the numeric sensor IDs, active sensor set, labels, timeout behavior, and alerts.
  • The SRAM mobile app is still where target pressure is defined for the sensors.
  • If live pressure appears but high/low status looks wrong, check the pressure target in SRAM first.
  • For multiple bikes or wheelsets, clear set names help distinguish configurations before using Auto mode.

Because SRAM AXS stores the target pressure and alert range in the sensor itself, TubeWitch stays in sync with the TyreWiz LED behavior and sensor status.

SRAM app showing tire pressure target settings
Pressure targets are managed in the SRAM mobile app

If one or both sensors do not connect

Try a Reboot

After install, upgrades, or sensor changes, fully reboot the Garmin device, restart the Garmin Connect IQ mobile app, then double-check the sensor IDs. That solves most setup and startup issues.

Acknowledge open connection prompts

Messages about sensors using open connections are expected during initial setup and appear once per sensor. You must acknowledge each message before data can be received from that sensor. If a sensor is missing data after setup, check the sensor ID then fully reboot the Garmin device to trigger the message again.

Remove competing data fields

If another TyreWiz data field is installed, it will block TubeWitch from reading the sensors. Uninstall the other field and reboot.

The FAQ page covers compatibility, sensor ID entry, and pressure target questions. The Alerts page covers popup, tone, vibration, and timing behavior. For the focused product overview, see SRAM/Quarq TyreWiz on Garmin.