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Hmmm, Not really an answer to your question but I have to express some surprise at your post and wonder if your earlier questions about suspension have some relevance. Why surprise? The normal complaint about airhead sidestands is that they allow the machine to lean too far to the left. This applies...

The only parts manuals issued by BMW are the parts fiches and the MaxBMW/RealOEM parts lists are nothing more or less than direct copies of that. Apart from the fact that the lists are not without errors in their own right, it has to be born in mind that they are intended solely for the use of spare...

As ever, apologies if this has been covered before... (R100, 1982) My Haynes manual tells me to drain the fork oil and pump the forks to get the last of it out, then replace the drain plugs before removing the filler plugs and putting the new oil in. But, if I remove the filler plugs whilst the dra...

Sorry, how are you finding it difficult to fit?

Rob

So, let's restate this... 1) When the forks are assembled (completely ?) without fork oil, they compress and extend freely without any sign of problems 2) When the correct amount of oil is put into the forks, they will compress but rebound to the normal position is restricted and they will extend bu...

On a 1990 BMW R80 Monolever the single front disc should normally be on the left, with the axle orientation matching the factory setup, so if yours has the disc on the right and the spindle inserted from the opposite side it strongly suggests the front end has been rebuilt at some point using parts...

The 'Gummikuh' description was more a comment on the soft, long stroke suspension favoured by BMW which was )is) very different to the sometimes harsh suspension favoured by a lot of the opposition. The frame itself is at least as rigid as the contemporary opposition in the late 60s when it was desi...

The 'Gummikuh' description was more a comment on the soft, long stroke suspension favoured by BMW which was )is) very different to the sometimes harsh suspension favoured by a lot of the opposition. The frame itself is at least as rigid as the contemporary opposition in the late 60s when it was desi...

The reasoning surrounding BMW decisions is often complex and difficult to follow but here is my understanding of the way things went... Firstly, they have a history of trying out innovations on a 'minor' model change before introducing them over the whole range... By the late 70s, the front fork des...

The 81- forks are as Rob says very different. They are essentially the same in principle as the the forks first introduced in 78 on the R45/R65. I think you may be thinking of the Monolever forks there, i.e. when the axles were moved to the bottom of the slider, instead of using a leading axle, and...