This weekend I picked up a very nice Andy Muff bike.
Just about nothing on the web about this Swiss bike, either built or marketed by Andy Muff, so I'll post this hoping to turn up some facts.
What I've found is that there seems to be an Andy who raced and built bikes, but I can't find his racing history.
https://conceptcycle.ch/images/radmarkt1709.pdf

Then there may be a trail of companies from Andy Muff Gmbh. to ISA-System to Concept Cycle, all in Zurich.
They market accessories, bikes, and a couple of inventions - micro-adjustable fit components and a standardized motor mount for electric bikes - which seems to be the main focus of Concept Cycle. concept cycle
I've emailed Concept Cycle, but no response this week.

Nicely done bike, losing its decals. 531 frame label with Campy dropouts. Serial number ends in 80, while the almost complete Shimano 600SIS group is from '85.
Photos as acquired:







So here's hoping somebody out there knows the history of Andy Muff.
Meanwhile, any suggestions for rescuing the decals? It's just one wash away from losing it's name.

There is currently a Schimmel Velo at this address. Perhaps someone there knows about Andy Muff bikes. I see some C&V frames in the window.

No response from Andy.
Andy Muff Gmbh was in liquidation last year.
Cleaned, tuned, lubed, touched up. Replaced the saddle and seat post.
Ride is "Sporty-Comfort" - reminds me of my Austro-Daimlers.