1 Frame changes from 2v to 4v Fri Jan 27, 2023 5:56 am
TheplayVik
active member
Okay guys,
so here is the issue. At the beginning of the build I obviously had to change the rear structure of my k100 frame to make it fit the new seat. As the german tüv does not like having non-professionals work with frames I gave it to a local motorcycle shop. The quickly called back and informed me that the frame was non-aligned and extremely expensive to repair, so I was kind of forced to find a new one. Long story short: I bought a frame, the bill calls it a 1985 frame. I couldn't bring it back home since I was in the process of being taught how to teach other soldiers our weaponry and was hung up on that. My parents were in the area so they brought it in and to the motorcycle job. Since both the shop and my parents didn't know that there are differences between a 2v K100 and a 4V K100 the didn't look after that. And everything fits so far so I just came across when looking at all my registrations just now. It a '91 4V Frame, they sold me the wrong frame.
While this might not make a difference for many other countries, german tüv is build different. And since my POC has no idea what the differences in the k100's are he won't allow me to use the newer frame.
So what actually are the differences? From what I've found in the 4V the steering tube has been strengthened, it's a duolever frame but no other changes. But that's it. I asked BMW classic which tried to answer me properly but they are probably more knowledgeable in the R-Series and couldn't really help apart from sending the technical drawings and telling me that there is no difference in the steering tube angle
Am I missing something?
so here is the issue. At the beginning of the build I obviously had to change the rear structure of my k100 frame to make it fit the new seat. As the german tüv does not like having non-professionals work with frames I gave it to a local motorcycle shop. The quickly called back and informed me that the frame was non-aligned and extremely expensive to repair, so I was kind of forced to find a new one. Long story short: I bought a frame, the bill calls it a 1985 frame. I couldn't bring it back home since I was in the process of being taught how to teach other soldiers our weaponry and was hung up on that. My parents were in the area so they brought it in and to the motorcycle job. Since both the shop and my parents didn't know that there are differences between a 2v K100 and a 4V K100 the didn't look after that. And everything fits so far so I just came across when looking at all my registrations just now. It a '91 4V Frame, they sold me the wrong frame.
While this might not make a difference for many other countries, german tüv is build different. And since my POC has no idea what the differences in the k100's are he won't allow me to use the newer frame.
So what actually are the differences? From what I've found in the 4V the steering tube has been strengthened, it's a duolever frame but no other changes. But that's it. I asked BMW classic which tried to answer me properly but they are probably more knowledgeable in the R-Series and couldn't really help apart from sending the technical drawings and telling me that there is no difference in the steering tube angle
Am I missing something?