So I put my 2015 ZX10R back to stock. Had a brembo 19rcs MC with speigler lines but removed that and put my oem MC back on. Bled everything last night. No air bubbles in the mc or either calibers. Had a buyer today that I was gonna bring the bike to him. Loaded it on my truck, brakes worked fine. Bike was on the truck for 3 1/2hrs. Go to offload at his place. Front brake was locked up. Opened up the bleeder valve to relieve the pressure on the MC and then closed it. Worked fine. Took it for a spin, it worked fine. But the fact that it did that spooked him so he backed out of the deal. It's working 100% fine now...any idea wtf happened?