51 Teeth Yamaha Off Road YZ125 L,M,N 99-01 YZ125 T,V,W,X,Y,Z,A1,B,D2,E2,F2,G2,H2,J2,K2 05-19 YZ125 L2 20 YZ250 F-N,P,R,S (4-Stroke) 01-04 YZ426 F-M,N,P 00-02 YZ450 F-R,S5XD2 03-04 YZ450 F-F,G,H,J1SL 15-18 YZ450 F-G 60h Anniversary Edition 16 YZ450 F-B,D USA12-13 YZ450 F-F,G,H,J USA15-18 49 Teeth Yamaha Off Road YZ125 P,R,S5XE2 02-04 TT-R230 T,V,W,X,Y,Z,A,B,D,E,F,G,H,J,K,L1C6 05-20 YZ250 P,R,S 02-04 YZ250 F-T,V,W,X,Y (4-Stroke) 05-09 YZ250 F-Z,A17D5USA11 YZ400 F-L 99