There is a company in, I believe GB, that sells true 1/48 scale bikes, that look like the real thing. Jerman, provided the info a while back. I had ordered from them, it went through, but then they notified me they were sold out. I just checked my records, but I must have deleted the file. Maybe Jerman can provide that info again. The bikes were really cool,, I would like to give that company another try......
Ted, i think you’re referring to Schuco Piccolo. Schuco makes numerous vehicles, motorcycles being one segment. They actually list them as 1/43 but, to my eye and relative to Arttista figures and their one generic motorcycle, which are true 1/48 O scale, i think Schuco’s are as well. As i mentioned, their motorcycles are models from the 1940s and 1950s or so, including Triumph and BMW, more esoteric brands like Horex Regina, Zundapp, and Victoria Bergmeister, and some sidecar models as well. They are pricey though. I’ve occasionally gotten some eBay deals which are few and far between, never from Schuco directly. If one isn’t an absolute stickler for scale (although admittedly, even those of us who are probably use a lot of 1/43 cars and trucks, myself included) and/or are modeling a more modern era, the MTH Harleys are a good, much more cost effective way to go. I believe they made two sets. If you can find them, there was also a separate set of riders which would help make a great scene. Maisto might also make some 1/43 models, also of the modern era.