Hmm .. a mate of mine had one back in the day .. the worst bike I have ever laid eyes on. Was always breaking down .. always .. often the ignition failed. And when it was running, it was slow and heavy.
The only upside was the 12 speed gearbox .. first, neutral, second, neutral, third, neutral etc etc
I'll never forget the sound of him riding it through the Barny forest .. the scream of the little sachs motor as he revved it out, hit neutral, found the next gear and revved it out again, then hit neutral again etc etc