Vintage BMW Motorcycle Owners

Good morning. Does anyone have information on stock rake and trail measurements for the R25/3? I've posted earlier about my center stand woes, have taken a strong 1" out of it (looks better now, less of a front downward stance when on the center stand), but the handling of my R25 is like a litt...

Thank you - looks, by those measurements, to be closest to the R25/3 stand. I'm out of ideas. Unless someone thinks I should be talked out of it, time for some cutting and welding?

Hello. I'm trying to figure out whether the center stand currently installed on my 1955 R25/3 is correct or not. When on the center stand, the bike is so high off the ground it's impractical to start on the center stand and is very difficult to even get it up on the center stand due to the height (p...

After a few minutes it stalls or can you ride it at higher RPMs or more throttle? Coil failing after warming up? Have you check the obvious, fuel lines, spark plug and sp cable, jets, key vibrating out of contact... It doesn't seem to die when riding - higher rpms keep it going. Within 1 minute or ...

Welcome to the forum! What was wrong with the original carb, do you know? I wonder about the reproduction carb. Is there a carb number that is similar to Bing? What about the other parts of the carb...the idle jet, the main jet, etc. [...] The latest suggestion for me is to get the bike warmed up a...

I have a 1955 R25/3, starts right up, nice and smooth idle for about 1 minute, during 2nd-ish minute of idling, starts surging, smoothing back out, surging again, until it cannot surge past stalling - then it stalls. I'm running a reproduction bing carb from ulismotorradladen. If I pick the idle up,...