Yes. But check to see what your front derailleur can handle. Specs for most say max of 16T difference between two adjacent chainrings and max of 22T difference between smallest and largest. That's why when you drop to a 26-tooth small ring you also have to drop the large ring to 26+22=48T. You might be able to get away with larger jumps, but shifting quality sometimes suffers if you go that route...