Joy:
Huh...I am jumbling up things
Meaning... ?
Your code to display the trip meter seems to have disappeared. It and the calculation of Trip should be inside the 'if' alongside the display of total km:
if (now - lastDisplayedMs >= 200) // update display every 200ms
{
lastDisplayedMs = now;
float km = wheelCircumference * savedWheelRevs;
lcd.setCursor(0, 0);
lcd.print(km, 1);
lcd.print("Km");
Trip = (savedWheelRevs - readEepromLong(TripMeterEepromLocation)) * wheelCircumference;
lcd.setCursor(...);
lcd.print(trip, ...);
}