BlackStar D80ATL16H - Double Strand 80 Pitch Taper Lock Sprocket - 16 ToothThe BlackStar D80ATL16H is a 80 pitch double strand Taper Lock roller chain sprocket with 16 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket requires a Taper Lock Bushing (sold separately). Specifications Part Number D80ATL16H Chain Pitch 80 Number of Teeth 16 Bore Type Plain Bore Hub Style Taper Lock Bushing Required Taper Lock Bushing Strand Count Double