One Alton 3 phase that just petered out. That style had design problems.
Two later ones lost their internal drive gears.
The original Miller dynamo quite when it's armature turned into a bird's nest of copper wires.
I also had my thoroughly modern Lithium Battery melt and destroy a near new charging system.
There have been one or two other electrical issues that made the engine sparks go away.
I've not had any mechanical problem on the Vincent in all that distance.
The Commando has done ok mechanically as well, but hasn't travelled as far.
