Aebbern, firstly, welcome!
My brother had a similar problem to you, except on his Custom Softail. The front wheel had been hit side on in a fall and unbeknowns to us had mounting flange for the rotor bent by about 2mm. This meant that the brand new rotor went on without a problem, but showed up as a pulse from the get go. A lot of fiddling around with hammers and a swing lathe we managed to get the dial out guage down to a couple of thou and it's as good as new. Took some figuring though, and another lesson that all is not always as it seems!
Mick
