Suicycle is a shop and not a bilder. Their best frames are from Hagen Wechsel. He sells frames though a number of shops around Hamburg.. Lubeck, Bremen,...
Hamburg is over 350 km away from Cologne. Too far, I think, just to have a casual lookie-lookie..
If one wants to widen the German search.. then alongside Wechsel and Krautscheid I'd also have a look at Agresti and Wiesmann. Wiesmann (near Freiburg) also does Steel and Titanium. Agresti (in Hanau, a town just north of Aschaffenburg into Hessen) does also Alu. They all do really nice work. From Cologne to Aachen is also not far and from there .. Belgium.. Holland is at ones feet...
If one wants to widen the German search.. then alongside Wechsel and Krautscheid I'd also have a look at Agresti and Wiesmann. Wiesmann (near Freiburg) also does Steel and Titanium. Agresti (in Hanau, a town just north of Aschaffenburg into Hessen) does also Alu. They all do really nice work. From Cologne to Aachen is also not far and from there .. Belgium.. Holland is at ones feet...