[SpudRider]

Originally Posted by Weldangrind

I'm betting that a tire change to a different aspect ratio would result in nearly a 5% difference.

Indeed, that's why it's nice to be able to calibrate the speedometer/odometer if you change tires, or the tread wears down on knobby tires, et cetera. I am starting to think it might be advantageous to locate the Jaycar Speedo Corrector under the pillion saddle, near the ECU. This area is not only protected from moisture, but it allows easy access to the unit whenever you want to make an adjustment.

Adjusting the Jaycar unit is as simple as turning one, or both of the potentiometers, and you can do that with the screwdriver in the tool kit, which is stored under the pillion saddle. In contrast, adjusting the SpeedoDRD is more involved, and that speedo corrector costs $70.