X-Sync 2 Steel 104mm BCD, Chainring, Teeth: 38, Speed: 11/12, BCD: 104, Bolts: 4, Steel, Black

* X-SYNC 2 chainring design increases chain retention, wear life, and reduces friction and noise.* Designed to be used with Eagle chain* SRAM Model ID: CR-XSNC-104-B1