Hello all, I am searching for the cheapest hub kit available... preferably a rear kit. So far this is the cheapest rear kit I can find: http://cgi.ebay.com/36V-500W-ELECTRIC-BICYCLE-ENGINE-E-BIKE-HUB-MOTOR-KIT-R-/230473312007?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item35a947a707
$240 with...