33 gear inches is what I calculate too. Like I said in the OP, it was doable but not optimum. If I planned to do much of this type riding on the bike, I would definitely change to a triple crank. I have a Sugino XD that would work great with 26/36/46 rings. But I really like the original crank with the Fuji name worked into the crank arms. and the gear ratios work fine for casual road and dirt road riding, which is the real purpose of the bike. The trail ride was just to see if the bike could handle a situation more extreme than what I would expect to see in normal use. Now I have a good idea what kind of conditions it can handle. I don't expect to come across much that it can't do.