Hello, I have a trek 7.3 for commuting and I am a little worried about potholes and and certain streets in bad state. I was deciding between a suspension or a rigid bike, finally I got the ridig, many people told me I don´t really need suspension in the city. I think is right , but still I find a lot of potholes etc. and rought streets. Can a carbon fork smooth the ride somehow? what´s the real diffrence with a the aluminium fork?