I am curious if any person has tried a Schlumpf geared hub in a 20" Kris Holm or Triton ti trials frame.
It seems it would make sense to be able to zip to a place in geared mode on the street, and then shift into 1:1 ratio for trials, and then ride home again in geared mode.
Trials and Street is more likely to destroy the hub than any other type of unicycling so I don’t think there is any serious rider who put this expensive “toy” into a 20" uni.