This is a Shimano 105 Series FC-5800L inner 11-Speed standard chainring with 39 Tooth count and 110mm bolt diameter in black finish. For 53/39 chain ring combinations.
Bolt Pattern: 4-Bolt Asymetrical
Chainring BCD: 110mm
Chain Compatibility: 11-speed/double
This product was added to our catalog on March 7, 2018