On both bicycles and unicycles the left and right matter.
The left crank/pedal NEEDS to be on the left and the right
NEEDS to be on the right. (Unless you mostly ride backwards
then switch that around).
The RIGHT crank has standard right-hand threads and the
LEFT crank has more unusual left-hand threads. To tighten a
right pedal you rotate the pedal spindle clockwise. To
tighten the left you rotate it counter-clockwise. This is
what makes unicycle cranks more than just two right-handed
bicycle cranks.
At first it seemed counter-intuitive to me. It seems that it
has little to do with bearing friction and everything to do
with what is called precession (The motion of the axis of a
spinning body, such as the wobble of a spinning top, when
there is an external force acting on the axis.)
If you want a more detailed (or at least in someone else's
words) visit 'Sheldon Brown's Site'
(sheldonbrown.comgloss p.htmlOpen ↗)
If you continue to have problems with the pedals coming
loose make sure the cranks/pedals are on the correct sides
and that they are properly tightened. If it continues you
might want to use some lock-tite on the threads (though I've
never had to).
-mg
--
mgrant - Ever hoping for the best!
The sun is the same in a relative way but you're older, shorter of
breath, and one day closer to death.
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