Sorry, yeah, i actually don't know if it's the chainwheel or the crankarm but its slightly bent. You can feel it cause in one possition the chain is nicelly tight and loose enough but when you turn it and it's super tight. A friend of mine, owner of a very high enshop here in Berlin, told me, just be seeing it from a meter away that the crankset is bent but it's not terrible so i woldn't have to replace it right now, so i didn't ask if it was the wheel or the arm. But anyways, as a new bike project i'd like to replace the whole crankset, i never did it before so it's a good chance to do it!