MCS-597326 - JT steel front sprockets are manufactured using Japanese SCM420 Chromoly or C49 high carbon steel. Accurately machined with the tightest of tolerances to guarantee a perfect fit and chain alignment. Fully heat treated

Fitment:
Triumph: 14-16 865 America ((LT) EFI (OEM 520 Chain); 15-16 865 Bonneville T100 EFI (OEM 520 Chain); 16-17 865 Scrambler ; 16 865 Speedmaster ; 15-16 865 Thruxton EFI (OEM 520 Chain)