I think your calibration is off. I’m fairly sure OMG comes right after 120.The speedo is not backlit, the light is reflected in around the edges. I had to recalibrate after my axle swap, Made up a pie chart in Excel to get the graduations right, pasted that into MS paint & added the numbers etc. Printed it & glued it on. Not factory but good enough.
Cheers
Clint