F800 17” front wheel ASC problems

Hi
I have just tried to do a 17” front wheel swap on a f800gs.
Fitted an new Wunderlich ABS ring to cure any problems.
Now the ASC keeps lightin up.
Has any one tried fitting a 17” wheel to a bike with ASC fitted??
Cheers.

Just a thought, is the ASC lighting up because it detects a difference in wheel rotation speed? Is the system programmed to know the difference with the 21" wheel but by changing the wheel size the system thinks one wheel is moving faster than the other and the ASC kicks in.