- Make sure this fits by entering your model number.
- Color: Black
- Material: Steel
- Chainring BCD: 130
- Defined Color: Black
- Ring Position/TYPE: Middle
This fits your .
Shimano Sora 3500/3550 9-Speed Chainrings Color: Black. Material: Steel. Chainring BCD: 130. Defined Color: Black. Ring Position/TYPE: Middle. Drivetrain Speeds: 9. Tooth Count: 39.