Originally Posted by
Carbonfiberboy
We went down to a 24T granny and then put on an 11-40 cassette off Amazon. That's an easy fix for you. Had to use a Wolf Tooth (has to be the real Wolf Tooth) with an MTB RD as mentioned above, although ours is the old Shimano XTR RD-M952 9 Speed Long Cage Rear Derailleur which came on our Speedster.
Thanks. I'll have to try this. Our Speedster has that very RD, and I already put a real Wolf Tooth on when I want to the 24T granny.