I bought a 36" wheel from someone on this forum, it did not come with a frame so I ordered a Kris Holms frame with the 100mm bearing pitch. Today I got all the parts and put it together and the brakes do not fit together. I didnt know that having the brake rotor on the outside of the frame was an option!
I would like to return this frame and order the correct frame but it seems that a qu-ax frame is hard to get in the US. Does anyone know of any other options of frames that I could get In the US. I know that cranks with the brake rotor outside the frame is an option too.
That’s really strange that the Nimbus Oracle 32” and 36” say 127mm bearing pitch as I’m unaware of any hubs that have a 127mm pitch. I’m guessing there is a typo and that 100mm is the actual pitch. Maybe @rogeratunicycledotcom can shed some light on this?
That looks like it will do what I want, but it doesnt say if it is for 42mm or 40mm bearings. I assume it’s for 40mm since thats what most are, but I think my 36" has 42mm. I guess I’ll email unicycle.com
Unigoof - It is simply to do with spoke angles. 100mm bearing spacing gives a spoke angle that are below the recommended for bikes… this is why Nimbus chose to go for 125mm (not 127) for their large wheel unicycles. The 125mm wide wheelsets, and hence frames, are vastly more rigid.
Q-factor. Nimbus 125mm wide frame with VCX cranks have the same Q-factor as KH frame with Spirits.
I can understand why spoke angle is important, I just totally forgot about 125 being a thing when I wrote that post. But I still see on UDC US the bearing pitch listed for the 36” oracle frame and 32” as 127mm.