6-pole is good for 75w and 8-pole for about 100w. Both of these are 2-phase windings and can work with your stock rectifier. The 11-pole puts out over 200w but is a 3-phase winding that needs a 250 rectifier and may need new supply and return wires to handle the power. Remember that the flywheel must match the stator because the magnets are positioned differently on each size stator.
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