Turns out that some motor controllers require a very specific tachometer input signal to function correctly. Our new exciter rings will create a waveform of exactly 4 pulses per second at 50% duty-cycle. The Zilla is one of those controllers that need this signal.
These rings will be available as part of our WarP™ Speed sensor kit.
We will probably paint these a more interesting color, maybe Red?
Edit: These are now available when purchased with the WarP™ Speed Sensor.