Jt Sprocket JTF1307.15 Steel Front Sprocket 15 Tooth Made front the latest generation of computer design and control metal cutting equipment for maximum durability All sprockets are heat treated and hand finished to meet or exceed the highest quality standards JT front sprockets are made from SCM420 steel alloy Fits Chain with a 520 pitch Applications: Kawasaki ZX-6R (ZX600 G1-G2,J1-J3) Ninja <<< 520 Chain Conversion - 1998 to 2002 Kawasaki ZX-6R (ZX600 G1-G2,J1-J3) Ninja <<< 520 Chain Conversion - 1998 to 2002 Kawasaki ZX-6RR (ZX600 K1,M1) Ninja - 2003 to 2004 Kawasaki ZX-6RR (ZX600 N1,N6F) Ninja - 2005 to 2006 Kawasaki ZX-6R (ZX636 A1P) Ninja <<< 520 Chain Conversion - 2002 Kawasaki ZX-6R (ZX636 B1,B2) Ninja - 2003 to 2004 Kawasaki ZX-6R (ZX636 C1,C6F,D6F) Ninja - 2005 to 2006