In a good usable size and a not-oft seen PCD this Sakae Ringyo (SR) 46 tooth middle chainring has the 5 hole 118 BCD as used on some Apex chainsets through the 1970s and 80s.
- Sakae Ringyo made (probably)
- 46 tooth inner/middle chainring
- 118 BCD
- For standard 3/32″ chains to suit 6/7/8 speed drivetrains