Sprocket Rear RK-B6839-44 JTR1800 Afam 86603Rear Sprocket. Made from C45 High Carbon steel. The sprocket teeth are heat treated (induction hardening), increasing the wear resistance and surface hardness. 2079 sprocket 44 teethPlease note: On occasion we may supply a substitute brand of a similar high quality to be able to maintain supply. If you require a specific brand of sprocket please contact our sales office directly or make a note on your order. We will endeavour to supply the brand you