Provides enhanced chain retention for all 1x drivetrain systems CNC machined AL6061 alloy mount with dual compound chain guide Co-molded composite and TPR guide plates greatly reduce noise from chain contact Compatible with 28-38T circular and 26-36T oval chainrings Boost compatible Easily adjustable Mounting hardware included ISCG-05 Mount Black 49gUPC/EAN/GTIN: 888571054161