Originally Posted by
timberline12k
Thanks for the heads up on this option. It may fit my needs better than the others. I will need to check if it is compatible with the Fargo Frame.
Excuse my ignorance, but is it correct to assume the 26/39 offers lower gearing than the 28/42?
Yes.
You can play with gearing using Sheldon Brown's gear calculator:
http://www.sheldonbrown.com/gears/
This is a very handy tool to understand and use -