So the red key is used for:
1) programing other black key
2) programing new speedo to match bike mileage (how do you do that or
is that a dealer magic?)
3) anything else?
Does the code on the card perform the same function as the red key?
In the old days, I can understand the speedo function, but with the new 749/999 I'm a bit at a lost. Service manual probably would have all this info but I don't have one. Hoping someone with knowledge can enlighten me.