Ciari Tetrad 

4 bolt Chainring

4 Bolt 104 BCD Bolt Pattern

Multiple sizes and color options. 

38t - Black, Silver

39t - Platinum, Silver

40t - Titanium, Platinum, Silver

41t - Platinum, Silver

43t - Black, Gold, Titanium

44t - Black, Gold, Titanium, Silver

45t - Black, Platinum, Silver

46t - Silver