yamaha sr 250 custom ve vintage garážovém posteru

1970s bobber motorcycle, black tank, three-quarter front camera, workshop garage. Generic unbranded period-correct design. Cinematic poster lighting, magazine-grade composition, sharp metal reflections, ultra-realistic photograph. No manufacturer logos, no real brand emblems, no copyrighted livery, no real-rider faces. Generic unbranded period-correct design only. Specifically: scooter italian 50s. Target search intent (rendered visually, no on-image text): "yamaha sr 250 custom" (cs).