Currently it has a 48/45 up front and a 14-22 in back. The 28 cog is on a pair of "climbing" wheels I rarely use in the flats of Illinois.
Okay, a small step. I was thinking of a 52/42 dbl. I'm still surprised at the 28. Mine is rated for up to a 26T cog but I'm running it with a max of 22T and to get it up I have to take all the pressure off the pedals...