Hello, I have had a BMW K100 LT Bj. 1985 for a few weeks. So far everything is great with the motorcycle. However, I have a big problem with the wind noises. I am about 1.90m tall and sit with the visor just a bit above the end of the disc. So in the middle of the vortexes. The wind seems to be with a multiple of my other mopeds without disguise. From about 120 km/h it becomes almost intolerable. An even longer disc will probably not come into question. Therefore my question can recommend a suitable shorter disc?