Originally Posted by
catgita
By way of clarification; the clickyness is the magnetic poles, but this is not drag. The poles pull and push equally, so lift the wheel off the ground and give it a spin and it should still spin freely, nearly the same as a regular wheel. With the light on, it will slow down a little quicker.
I was wondering if putting a load across it will reduce the clickyness, but I haven't tried it. There is only one set of magnets, it must be generating a field in the windings when you move the axle. So you're right, it's not drag in the common meaning of the term. It seems strange that it would be so strong with no load.