The Geometry of 7W model seems to be the same of the 6 . Components are a little bit better, also wheels are DT 1800 vs 1900 . I have no idea if also the frame tubes are thinner. I am not sure if in the web the pictures of these models represent the same size of the frame because I noticed that the bridge between seat tube and horizontal tube is not present in the 7W model, there is just a reinforcement but it's also possible that the picture represents (7W) the S or even XS frame and this would explain the difference. For more detailed information you should write to Canyon DE, they do not have any problem to answer in English .
Canyon said me that are the same frame for both genre. About wheels i couldn't find anything about 1800 model..
In size XS and S for men that reinforcement doesn't exists neither.