From what I can find about this bike by punching it in a search engine,I would say its not worth upgrading.The 2002 model is a cromoly main triangle which is good.But the stays are high tensile steel,which is heavy.The 2003 model is an aluminum frame and the bike still weighs 30 lb.Upgrade out the wazzoo and you are still going to have a heavy bike.It still might make a good,cheap bike to putter around on though.My 1993 hybrid weighs 30 lb and I put 10,000 miles on it.