I have the following problem. I have a BMW K1200 RS from the year 2001. After the rear tyre had run off, in contrast to the front tyre, I replaced it. As I am aware that it needs to be approved, I looked for the appropriate type. In the vehicle license it says: “Regard tire factory binding GEM. Operating permit”. However, the above tyres are no longer built and the right has changed so that a mixed tire of different brands is allowed. I read e: “Mixed tyres have been allowed in principle since 2019”. (I was told that the conversion date was 1.1.2020) or in the fine catalogue.de says: “Mixed tyres on the motorcycle: Is this permissible? A mixed tyres are also allowed in principle on the motorcycle. So if your motorcycle has different tyres, it has no consequences for you.” Also in many motorcycle pages it is allowed. That is why I have the following combination on the BMW: Front: Michelin 120/70 ZR17 (58) W) Pilot Road 2 Front M/C Rear: Metzeler Roadtec Z6 170/60 ZR17 72W Both tyres are approved for the BMW, but the Tüv tester denied me the badge today. He said that I needed a proof confirming this combination. I told him what was still formulated as a tyre combination at the time, is no longer manufactured today. He: Yes, that’s clear to him. ???? At the same time he says that he only needs a two-lined one, that this is allowed. I don’t know any more, and maybe someone knows the problem and knows a solution.