Be aware though that many bik3s that had those big oval holes on the top tube ended up with cracks starting at those holes.
Not sure why, but maybe some of them did not have those hole edges smoothened enough, so it presented possible stress risers at the hole edges...
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72 Line Seeker
83 Davidson Signature
84 Peugeot PSV
84 Peugeot PY10FC
84 Gitane Tour de France.
85 Vitus Plus Carbone 7
86 ALAN Record Carbonio
86 Medici Aerodynamic (Project)
88 Pinarello Montello
89 Bottecchia Professional Chorus SL
95 Trek 5500 OCLV (Project)