The fibercraft fender allows too much dirt to get kick back into the radiator. It is a racing fender not a street fender. The larger front tire will also slow you down and tax your stock front brake. Also, 110/70 tire are recommended with 3.0x17 rim by most tire manufacturers for proper handling. But, if all you want is look then it looks fine. With 120/70 in the rear you're going to need a 45T rear sprocket to get back the acceleration compare to a stock bike.

