Lost Rear Brake on R3T

Yeah, highly unlikely for it to be mechanical failure. I was visiting Norway and going down a steep mountain side, and almost all the way down the pedal just hit the stopper. I had been unconsciously braking with the rear even though I knew I wanted to engine brake only - not a fan of heights... That sorted itself once the heat went down, but I still replaced the fluid once I got back home. But good thing almost all the braking power on a bike is on the front two discs anyway.

Thanks. I have a can of Motoul on order. It never came back to working. I will let you know if the flush works.