K-Series

The K-Series use the F5 cross frame as a basis and can be set up in a couple of different ways. They come in four frame sizes: 51, 54, 57 to 60 cm.
You can pick almost any frame color. The rest of the bike is pretty much custom as well. You can get the frame with V-brakes/cantilever or regular road calipers. In either case there's room for 32mm tires plus mudguards. Need a rack? All the eyelets are there.

Here are some suggestions:

The K 1

A sturdy singlespeed, fewer moving parts and less wear. We can set it up either as a fixed-gear or a singlespeed. A flip-flop hub (one cog on each side of the hub) is optional.

Start price: € 800,-

The K 2

Same principle, but with a 2-speed Schlumpf planetary gear system from Switzerland. It's located in the bottom bracket, and thus offers a good weight distribution. It is almost maintenance free (from € 1150,-).

The K 3

The K-3 uses a good old Sachs/SRAM 3-speed hub. The minimal wear concept still applies, but the gear range is a little wider, for those of you who have some hills on their way home. You can also get the hub with an optional coaster brake (from € 800,-).

Here's a picture of a K3 with a Shimano dynamo hub, lights and mudguards. This one costs € 900,-