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Old 2019-03-24, 06:38 PM   #15
2017 UK Road Race Champion
Join Date: Jul 2009
Location: Leeds, W. Yorks. Unicycles: KH36/32, KH36 (stolen), KHF29, KH24, 19" Gravity, 20" BC
Posts: 1,229
I've only just realised how the gearing works on the MC2.

The prototype version used a second disk brake for gear changes. The new version omits this so perhaps a drum brake type arrangement to do the same thing?
Think of the disk brake as the reaction arm on a standard hub. If you're in low gear and the reaction arm isn't attached to anything, everything turns at 1:1 (including the reaction arm). As soon as you lock the reaction arm, the planetary gears are engaged and you're in high gear.

What I can't quite wrap my head around is what happens if you drag the gear shifting (reaction arm) disk brake rather than locking it on? Do you get a really crude CVT?

Also, if you removed the freewheel and quickly changed direction while in low gear (spinning reaction "arm"), would it just change direction, or would something weird happen?
"Ride It Baby!"

Last edited by mowcius; 2019-03-24 at 06:39 PM.
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