Breaking off the stop could, in theory create an invisible stress crack that could grow over time and fail at some point in the future.
You should replace the part or at the very least have it magnafluxed.
In reviewing NYANDY's picture it seems the stops are part of the casting (i guess the triple is hollow, which makes the situation worse) so breaking the stop off can compromise the integrity of the triple.
That being said, there is a chance that its fine but there's also a chance that it could break with the next wheelie or pot hole.
I wouldn't take the chance since we know very little about the panigale.
You should replace the part or at the very least have it magnafluxed.
In reviewing NYANDY's picture it seems the stops are part of the casting (i guess the triple is hollow, which makes the situation worse) so breaking the stop off can compromise the integrity of the triple.
That being said, there is a chance that its fine but there's also a chance that it could break with the next wheelie or pot hole.
I wouldn't take the chance since we know very little about the panigale.