re shaft drives and wheelies in article snz morgan demon co uk tony morgan demon co uk tony kidson wrote well maintained chains running in oil without those little rubber o rings to cause frictional losses might reach efficiency the average open to the dust o ring motorcycle chain probably has a difficult job making efficient how about some citations or is this just impressionistic speculation on your part for years i ve been laboring under the delusion that chain drives were more efficient that shaft drives chain drives are also stronger ever seen a successful shaftie dragster no no flames please i ve got both kinds of drives john stafford minnesota state university winona all standard disclaimers apply
