{HEAD ~ The dropouts} are fixedly held by {TAIL ~ a pair} of chain stays, one of which, identified by reference numeral 39 is visible and the other of which is hidden directly behind it and behind the wheel 36 in this view 
are fixedly held by
{ HEAD ~ The dropouts } are fixedly held by { TAIL ~ a pair } of chain stays , one of which , identified by reference numeral 39 is visible and the other of which is hidden directly behind it and behind the wheel 36 in this view
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH