So I recently bought some warp 9 wheels for my crf250x. I am new to this and now need help figuring out what tire size. I'm most likely going with Michelin pilot powers or powers2ct. I was planning on a 120/70/17 in front and a 150/70/17 in back. I know some people run 160/70/17 in back but I want to minimize chain rubbing. Does this setup sound good? What are some other recommendations. This is for 95% street riding. Thanks!