I have a 2013 multi. last year I did a trip to the French Alps and started using the rear brake for the first time. Why I've waited 30 years to realise the effectiveness of the rear brake.! But now it has got spongy. I bled them , but it made no difference . The consensus on most forums is that Ducati don't make rear brakes. However, there was a post that said you move the rear calliper and lift it above the bike and bleed it in an upside down position . You do not have to remove the rear wheel. Remove the chain guard and the hugger. The brake fluid cable is clipped with the abs cable. They are easily separated by rubber clips. Then feed the calliper through the rear wheel so it is now on the master cylinder side. Hold the calliper high above the bike and get an assistant to help pump the brake pedal while you control the bleed nipple. Result is the pedal travel is now back to the correct position. No spongy feeling.
If use high boiling point fluid it will last longer too ... Castrol SRF is spendy , or ATE Super Racing is better value ( can’t get the blue stuff anymore)
I used to use castrol SRF in my track bike which I don't have anymore. Now that I know this method of bleeding works, I will use it next time it needs doing.
