Tonight I installed new pads front and rear for only the second time. The first time went with out a hitch. The fronts were a breeze but I had some issues with the rears. After I got the rear pads installed I lost all firmness in the lever, it is now very mushy. On top of that I can see just a tiny bit of brake fluid squeeze out the reservoir cap every time I pull the lever. I tried riding and I have zero braking power. The rear brake will stop the tire if you just spin it but it will not even slow down the bike when riding. Do you think I need to bleed them or is something else wrong? Thanks for any help.