Marketing Color: Natural Material: Steel Sprocket Position: Front Sprocket Size: 520 Sprocket Teeth: 15 JT Sprockets are made from the latest generation of computer design and control metal cutting equipment for maximum durability. Front sprockets are made from chromoly SCM420 steel alloy. All sprockets are heat-treated and hand-finished to meet or exceed the highest possible quality standards. This item fits H-D the following vehicle applications: fits HON XR650R 2000-2007 fits KAW ZX600 Ninja ZX-6R 1998-2002 fits KAW ZX600 Ninja ZX6-RR 2003-2006 fits KAW ZX636 Ninja ZX-6R 2003-2006