If you calculate the moments in this position, the right side wins even if you say the one on the slope doesn't help:
http://gimeimages.com/uploads/537395Calc.jpg
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Yeah, the slope isn't attached to the wheel.
Yeah but the point is the weights in the bottom right section have a much greater moment because they are further out than their opposing numbers.
Also, I don't think the slope really supports the weights that much. I mean, if it was just one weight and it was on the slope bit, it would still...
The weights are attached to the main wheel by ratchets that only turn anticlockwise. The green thing is a slope that the red wheels roll down.
It's a variation on another 'perpetual motion machine' that I saw a while ago, but I can't see what's wrong with it! It's driving me mad...