What about the geared hub from the penny version?
It uses/used a freewheeling Schlumpf hub.
As they were custom engraved with bicymple, they clearly had a production run done for them, but I had previously presumed that they were square taper hubs.
Based on these 1:1 hubs being ISIS I’m now thinking that they had a custom run made of freewheeling ISIS Schlumpf hubs, which with the BrakeFast Schlumpf Brake Adaptor would allow a 2 speed freewheeling unicycle with a disk brake.
They apparently enquired about another run and got nothing, so clearly Schlumpf isn’t making custom freewheeling hubs or unicycle hubs.
Now someone just needs to find a 2 speed bicymple owner who wishes to part with it…
Super dangerous! Rolling at 25km plus per hour and freewheeling…
Honestly I don’t think it’d be that bad. I’ve done 25kph on my freewheel downhill and it felt fine.
Because you’re not spinning your cranks around madly, if you’re doing brake assisted freewheeling then that speed doesn’t feel all that bad.
There’s a 3.8 ratio on some geared hub
The JR Game Changer hub is 3.8x geared, but it’s single speed so not all that useful, and it requires a custom frame.