After a ECU Flash, will I have to reprogram the keys to my European motorcycle?

Original Question: I’m from France and was interested in your ECU reflash for the ZX-14R. I’ve heard the keys are coded with the ECU. If I get the ECU reflash, will I have to reprogram the keys to my bike?

ANSWER

We have re-flashed many European ECUs and it has not affected the antitheft coding between the ECU and the key.