Yes, Sakae Ringyo (Sockeye Ring-Yoh)
In the early 1990s, SR manufactured another bicycle brand called Prism, which had a bonded aluminum frame.
The SR Prism is also known as the Suntour Litage.
It is constructed similarly to a Vitus but is lighter and stiffer, thanks to the shape of the stays and some novel bracing in the lugs.
I have one in like new condition.
