Yep. Teas me. The abs pump had ended up in an odd position. Only way to reset it it some dealer tool or to move the bike fast enough for the abs light on dash to go out. I went thru about 5 bottles of fluid trying the get the front to firm up. Dropped it I to the shop, 2 hrs later, firm, solid feel..
Strange, maybe related or not, but my friend's '18 gsxr1000r brakes felt very wooden, no feedback, and poor stops since new April 2019(left over).
3-4k miles later, the rear brake completely stopped working.
Stumped as to why, lots of reading with no answers, no supposed way to bleed at the proportioning valve, and linked abs; now what?
Well, lets bleed the rear...for about 20 minutes, and Lots of air.
Great, now where is the leak?
Good question, that was over a couple thousand miles ago, the brakes have worked Much better ever since(suprise), and there is no evidence of any leak, loose lines, etc.
I would have felt better finding a problem.
All I can imagine is that it had an air pocket in the system since day one(as the brakes felt better after than they ever did brand new).
Yes, brakes do need bled every couple seasons(just do it fluid change), but this is a new one on me, never seen it happen like this before.