The sprocket is positioned between the universal joint and {HEAD ~ the free end portion} of the drive shaft, to maximize {TAIL ~ the distance} therebetween, and thereby minimize the included angle required of the universal joint 
to maximize
The sprocket is positioned between the universal joint and { HEAD ~ the free end portion } of the drive shaft , to maximize { TAIL ~ the distance } therebetween , and thereby minimize the included angle required of the universal joint
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH