Many years ago (1976) i had a ural with a substitute chair mounted on the left for uk roads. Cheap to buy and expensive to run.
I know they changed owner, but the new versions still have the look and feel of the bmw r71 styled model that i had.
Dead easy to work on, with the flat twin arrangement making the engine parts easily acessible. Front and rear wheels were interchangeable, along with the wheel of the original chair.
There was an odd, troublesome electro mechnanical voltage regulator. Relays and springs. Not reliable on my machine, but someone had fiddled before i got it.
Ignition coils and ht leads were a bit exposed, and needed a lot of attention prior to the onset of winter. The first sign of salt on the road would leave me stranded as it found its way into the electrics, unless i replaced the leads and plug caps each year. Ht current would pass down the outside of the ht leads from tiny nicks acquired during the year. Wd40 got rid of the salt water and effected a temporary cure. I started carrying spares with me. Easily replaced by the roadside if necessary.
The carbs were pretty poor, and balancing the two cylinders was rather hit and miss.
The killer for the engine was the crankshaft, which was not a single piece. It was made of components which were press fitted together. No woodruff keys or anything sophisticated like that. It got slightly out of shape and that was it for that engine. The replacement engine served me much better.
The wheels are spoked and the rear wheel was forever breaking them, due to the stresses and strains on the rear wheel when taking right handers with a passenger in the chair at speed. Yes i know the proper technique is to slow on right handers, but much less fun. Massive understeer in spite of having the rake and toe in correctly set up.
It used a lot of oil, and difficult to stop oil leaks down the push rod tubes which provide an oil feed for the cylinders.
Great fun to ride. Loads of power. Shaft drive - but flimsy universal joint. Easy to work on. But reliable ? Well, i remember having to work on it a lot at the road side. But it never left me stranded because everything was so easy to get at. But the sidecar always had a full set of tools, a spare battery and a can of oil. All seated on top of the paving slab which kept the chair down on left handers.