JT Steel Sprockets are the OEM quality choice, manufactured using only the finest grade of C49 high carbon steel for the rear sprockets, and SCM420 chromoly steel alloy for the front sprockets.
Fits:

15 Teeth
MuZ Road
600 Sport Cup 97-98
660 Baghira 97-03
660 Mastiff 97-03
660 Scorpion Replica 95-99
660 Scorpion Sport 95-99
660 Scorpion Tour 95-02
660 Scorpion Traveller 95-02
660 Tour 97-98
660 Trouper 97-98

Yamaha Road
TT600 R 98-03
XT600 D,E 87
XT600 H 87-89
XT600 K 91-94
XT600 E 89-98
XT600 Z Tenere 89-94
XT600 E,EC-A,B,D,E,F,G 90-95
XT600 E,EC-A,B,D,E,F,G (Lightweight Rear Sprocket) 90-95
SZR660 96-98
XTZ660 Tenere 3YF 91-95
XTZ660 Tenere 96-98