Not sure if this is covered in another post but here we go. Bike: 2004 ST1300 ABS with 180,000 miles on it. When I am at a stop and pump the rear brake pedal I feel the pulse through the front brake lever. I don't remember this being normal and wondered if it is a sign of something worn. I have bled the system according to Johns method, using about 3 quarts of brake fluid. The brakes actually work quite well, though I still have the problem with a clacky SMC, which if I pump the rear brake it will not rattle until I use the front brake and then it will start rattling again...only over bumpy roads going slower than about 40 mph. I did replace the piston assembly and the inside of the bore looked good, but still to much play. Does not want to tighten up without pumping rear brake, thus why I give it a little pumping at a stop after using the front brake. Tightens it back up till the next time I use the front brake.