Sprocket Rear RK-B3234-51 JTR1249 Rear Sprocket. Made from C45 High Carbon steel. The sprocket teeth are heat treated (induction hardening), increasing the wear resistance and surface hardness. Fitments: Make Model Engine/Variant Year Notes Honda XLR 125 RW 1997 Honda XLR 125 RW 1998 Honda XLR 125 RW 1999 Honda XLR 125 RW 2000 Honda XLR 125 RW 2001 Honda XLR 125 RW 2002 Honda XLR 125 RW 2003 Chain Pitch: 428