From what I have seen most are set and forget Alexandra Houchin was on 36 x 19 which is pretty nails on some of the climbs (Indiana is 3620 mts). Chris Plesko came in 2nd(?) behind Mike Hall in 2016 was on 32 x 16. Cant remember what Jenn Hill used.
Sliding dropouts on it. It's 34x17 at the moment but I'm dropping it to 21T and then I need to find wider bars for it and maybe ghetto tubeless the wheels (actually rear is probably TL ready).
What gear ratio have previous SSers run on the TD? Do they take flip flop hubs or is it a set and forget rule like the Silverstate 508?