By UVEX I-VO CC have however finally found the perfect city bike helmet for me. Even without fine adjustment harmonized helmet and head well. And after the inner fine-tune the result was still coherent. Inside the helmet can be designed to enable the position and height of the head rest. I have not seen in any other helmet. So I was able to position the helmet deeper, closer towards the ear and eye.
For my head shape of UVEX I-VO CC fits.