In some embodiments, the flywheel has a radial outer edge defining {TAIL ~ the maximum radius} of the flywheel, and each of the lobes extends to {HEAD ~ the radial outer edge} 
In some embodiments , the flywheel has a radial outer edge defining { TAIL ~ the maximum radius } of the flywheel , and each of the lobes extends to { HEAD ~ the radial outer edge }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD