One of the enduring charms of old BMW motorcycles is that they are virtually unkillable. Even if, against all odds, you do manage to put one out of commission, chances are you have a connection to someone with the know-how to resurrect it (or you possess the skills yourself). But how many people can construct a functional BMW boxer from a jumble of mismatched parts"
At a glance, this graceful machine looks like a regular, albeit incredibly tasteful, vintage BMW R60 restomod. But it’s actually a Franken-bike of the highest order?pieced together from multiple discarded donor bikes spanning three decades.

It’s the work of MotoRRetro in Sydney, Australia. Run by Vaughan Ryan and Georgio Rimi, the workshop specializes in classic car restorations and modifications, but they also occasionally divert their attention to custom bike building. And when they do, the results are spectacular. The genesis of this project was the acquisition of a whole bunch of BMW airhead parts from a workshop that was closing down. Picking through the bones, the guys figured that there was enough there to piece together the beginnings of a working motorcycle. The result is a stunning bobber that redefines the term bitsa.

At the heart of the bike are key parts from two different BMW R60 donors. The frame and fuel tank are from a 1960s BMW R60, while the engine block and final drive come from a 1970s R60/5. From there, it gets interesting.
Calling in help from master motorcycle mec...