40mm Frame with 42mm bearing?

Unicycles and Equipment

tholub April 24, 2010, 2:28pm 9

Note that this may not work well.

Design problems with Nimbus ISIS hub Unicycles and Equipment

I just bought a Nimbus X 20" freestyle unicycle, which is the first unicycle I’ve owned with the Nimbus ISIS hub. I mentioned back in this thread that the Nimbus design seems to be in violation of the ISIS spec. After looking at the overall hub design, it seems to be only one of several extremely questionable design and/or manufacturing issues with this hub. [Nimbus X hub design problems] In this video, I demonstrate that my wheel is not spinning freely, even after I’ve totally r…

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