KCNC Ultra Sram X-Sync Long Teeth Narrow/Wide 11-12s, Black | Bikeinn
Funn Solo DX Narrow Wide Chainring for 9 10 11 12 Speed Chain, Fits SRAM Direct Mount Interface Crankset, 6mm Offset, Single Speed Bike Chain Ring for MTB, BMX Bike and Road Bike (28T, Black) : Sports & Outdoors - Amazon.com