It is from the nicolai website, I posted them to try and canvas any opinions on why the hell they are so popular. I do not own these bikes. my bikes are not worth the internet's time. neither is my riding skill, or photography, or videos. I just sometimes come across others that are, and so hope to share their genius with others. I take no Credit for the shots or riding. I am just another member of the Audience.

 what size is this ??