Steering Calibration

As the handlebars are tilted side to side, the internal mechanism turns a potentiometer, adjusting the resistance read by the PCB components. This is fed back to the computer in the form of a number 0..255 (left..right). It should be about 115-120 when centered.

Apparently there are 2 different PCBs and they calibrate in slightly different ways. Let's refer to these as X and Y.

Definition: Common calibration procedure

• Start the xdream test console application that shows the telemetry from the bike
• Confirm that it is showing telemetry
• Power the bike off and leave it for 30s to drain everything
• Holding the left gear up button, turn the power on

Initial Determination of PCB Version

• Perform the common calibration procedure
• Release the left gear up button

If the console stays black, you have type X, otherwise you have type Y.

Calibration for type X

• Perform the common calibration procedure
• Release the left gear up button
• Lean the handlebar all the way left, then all the way right, then all the way left, then release to center.
• Press the left gear up button

The console application should begin showing telemetry.

Calibration for type Y

• Perform the common calibration procedure (do NOT release the left gear up button)
• Lean the handlebar all the way left, then all the way right, then all the way left then release to center.
• Release the left gear up button

The console application should begin showing telemetry.

Painting the X-Dream V1 Bike

The gold color of the author's bike was matched in a paint shop to: Ford (Europe) Noisette-Met 9TQC