My first long tour in 1974 was 1100 miles on a Peugeot PX 10 with 45/52 crankset, a 14-24, 5-speed freewheel, and 23mm tires. It was from the Idaho/Canadian border to southern Oregon. It was NOT a flat route! I guess I did not know that it was not a "proper" touring bike, because I had a great time