Right after I had another spoke fitted went out my house for a quick 10 minute spin. Rode for about 15 minutes then all of a sudden brake went mush. I don't understand how it happened, one second they were working perfectly, then the next second, they weren't. It's just a bloody joke now. When I pull the lever, at first doesn't do anything, then pull it a bit futher and completly locks the wheel, then takes a while for pads to move away from the rotor again. What can I do to fix this? Please help Thanks