i am planning to upgrade from my early 90's diamondback road bike that is too big for me and weighs too much (28#). i found a this R2000 at a great price but not sure if the frame is good or not. it has all campy chorus components with double crank and has spinergy xaero wheels. this is from the year 2000. excellent condition and is a 52cm frame. any experience with this type of bike? or should i pass. the other type of bike i'm thinking of is a trek 2300 with the Z frame. hard to find a 52cm though and not too expensive either.