Marketing Color: Natural Material: Steel Sprocket Position: Rear Sprocket Size: 420 Sprocket Teeth: 48 JT Sprockets are made from the latest generation of computer design and control metal cutting equipment for maximum durability. JT rear sprockets are made from the finest C45 high carbon steel. All sprockets are heat-treated and hand-finished to meet or exceed the highest possible quality standards. Induction hardened with black zinc finish available on certain sprockets. This item fits H-D the following vehicle applications: fits YAM DT50 1988-1990 fits YAM DT80 1981-1983 fits YAM GT80 1978-1980 fits YAM GT80 1974-1976 fits YAM GTMX 1977-1979 fits YAM LB50 Chappy 1978-1982 fits YAM MX80 1980-1982 fits YAM RX50 1983 fits YAM TTR50E 2012-2014 fits YAM TTR50E 2006-2009 fits YAM YSR50 1987-1992 fits YAM YZ80 1975-1977