Chinese mass produced chain retention device/chain guide system for single rings from 32 teeth up to 40 teeth brand is Suking, Model is XT-60 main plate is CNC'd 7075 aluminium cages and bash plate are plastic drilled for ISCG-05 frame mounts also comes with a plastic bottom bracket mount so it can be fitted to bikes with either no ISCG mounts or theolder ISCG-03 mounts shows some signs of use bit very little as was only used fleetingly so still in excellent condition
