I recently flushed my non-ABS motorcycle rear brake line with new fluid using a little hand vacuum pump, but accidentally initially let the brake fluid drop below the "low" marker on the master cylinder/reservoir.
After bleeding and cycling in the new brake fluid a couple of times with a little vacuum pump, it seemed as if I had removed most if not all of the unwanted air.
But, while the rear brake pedal range-of-motion feels totally fine (just a little press locks up the rear wheel), I'm noticing the rear wheel happens to skid a bit more under hard braking now.
Could this somewhat easier tendency to "lock" & "skid" be a result of sponginess or unwanted air in the brake line?