http://mombat.org/MOMBAT/Museum/Stingray_Museum.html
1971 Manta Ray: The Manta Ray was made for two years (1971 and 1972) and four colors (green, orange, silver, yellow). The tires are 24 x 1 3/8" and it used a specific larger saddle. It was sold by Schwinn as a "big kids bike" for the older larger/kid who wanted the Stingray experience. This is a 1971 with the caliper brake whereas the 1972 model used a rear disc brake.
어른들도 즐길 수 있게 71년에 24인치 버젼이 출시가 되었는데, 71년, 72년 양해만 생산되고 더이상은 생산이 안 된 듯 싶습니다.
72년형은 디스크 브레이크가 장착되었다고 합니다.
70년대이니만큼 포크에는 러그가 달려 있군요.