We did a conversion bike using the kit from Leon Cycle. I can confirm the same thing you are seeing. Do you know if the odometer is actually showing KMs though? We don't use the bike a ton, so I haven't measured it out to figure out if it's actually showing KMs, but my thinking is maybe it is still showing miles, when the display is in mph. The LCD, maybe, just always says "KM" since it's just an icon?