JTR857 Rear Drive Motorcycle Sprocket 39 Teeth (JTR 857.39)

Made by JT Sprockets, world leading aftermarket sprocket manufacturer for over 30 years. JT Sprockets offer an unbeatable combination of quality, durability, and price. JT Drive sprockets are exclusively made from the finest Japanese ultra-durable high carbon C49 Steel or SCM415 Chromoly Steel Alloy.


  • Fully heat treated for higher wear resistance
  • Meet or exceed Japanese OEM standards
  • Optimum design for light weight and strength
  • Perfectly finished in zinc or black enamel coating

Compatible Bikes:

Manufacturer Model Year
Yamaha XT550 1982-1983
Yamaha XT600 H 1987-1989
Yamaha XT600 K 1991-1994
Yamaha XT600 Tenere 1984
Yamaha XT600 1983-1984

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