I bought a new Z1000 and I don't like the stock tires to much. So I was planning on getting a set of PP 2CT's . I had them on my 636 and loved them. Now I'm wondering If when I get them I should go with the 190/55/17s instead of the stock 190/50/17 size or what about a 180/55/17 . Has anybody done this and what are the pros and cons of the change?