The "official" Nimbus Oracle (disc brake) MUni thread

Ha, this is exactly the thread I was looking for. Rise from the ashes!

I’m looking for some measurements of 29" Oracle (disc) frame. I’ve noticed there are at least two or three types of these frames with different design of break mounts. And from some pictures I’ve seen it seems that they might be slightly different sizes as well.
#1) http://www.unicycle.com/nimbus-oracle-29-frame/
#2) https://www.unicycle.uk.com/unicycle-parts/frames/frames/nimbus-oracle-disc-unicycle-frame.html
#3) https://www.unicycle.uk.com/unicycle-parts/frames/frames/nimbus-oracle-unicycle-frame.html

Anyway. Does anybody have #1? I’d be really happy if you could measure the vertical distance from the centre of the axle to the lowest part of the crown, the bottom of the seatpost. It doesn’t have to be perfect measurement (don’t bother with disassembly). I think taking the measurement from the outside between the bearing housing clamps is good enough resulting in a max error of mm or two…

I’m trying to figure out if I can fit 3" low profile tyre there. From research so far it seems it would be really close. But only measurements would confirm. I have no way of measuring before buying. Nor returning.

Thank you! :slight_smile:

Wheel sizes

I have some questions about wheel size as well.

How wide of a tire can you fit in a 26" oracle frame if the diameter is:

24"?
26"?
27.5"?
29"? ( don’t Know if this fits, just throwing it out there in case it does.)