ECU reflash for tire size change?

[eakngcobra_imp]

I just put the Michelin 160-60/18 tire on my bike. I read that the tire height change isn't much, but isn't the speedometer computer ran? So if I reflash my ECU couldn't I also get the speedometer adjusted to the correct reading?

 

[CIP57_imp]

It's only .6 which is equivalent to 1 mile per hundred. If you're having the ECU flashed for performance it would be worth it