Regardless of existing marks the actual running direction of the chain and sprockets will appear on the link plates.
JMP Chain Alignment Tool 1pc Fit Ducati ST2 944 Sporttouring 1997-2003
JMP Chain Alignment Tool 1pc Fit Ducati ST4 916 Sporttouring 1999-2003
JMP Chain Alignment Tool 1pc Fit Yamaha DT 400 1975-1979
JMP Chain Alignment Tool Fits Benelli 2C 250 disc 1974-1976
JMP Chain Alignment Tool 1pc For Honda CB 500 1971-2016
JMP Chain Alignment Tool Fits Triumph Hurricane 750 1973