I just bought a used Giant Cypress ST. I was hesitant because it has a heavy frame but I read a few good reviews on it and it was a good price. Right now I am only go to and from the gym (about 3.6 miles one way) but I would like to start commuting to work (16mi one way) and I was wondering if you guys have any suggestions on improvements I can make. I want to get it to go as quick and ride as smooth as possible. It is all stock nothing has been done to it. Any suggestions?