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