A vehicle body frame 1, wherein {HEAD ~ said head pipe} is formed at {TAIL ~ its tubular main body portion} with an opening 
is formed at
A vehicle body frame 1 , wherein { HEAD ~ said head pipe } is formed at { TAIL ~ its tubular main body portion } with an opening
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH