I am getting a new frame and making decisions about the drive train. I am trying to "future proof" the decision, anticipating that five years into the future things might change with my already compromised knees causing more issues.
My choices are to get a compact double (Shimano 7950) or a Campy triple with a compatible cassette. I am assuming that for riding the hills where I live (average ride is 2-3K of climbing) either will be fine now, but in the future the triple may be the best option. However, the 7950 might offer an upgrade path to electronic shifting that the Campy triple does not.
For a five year decision .... what would you do?