- JT Sprockets produced using computer design and metal cutting control equipment
- Rear sprocket made from high carbon steel
- Heat-treated and hand-finished construction
- Sprocket position: Rear
- Sprocket size: 420
- Sprocket teeth: 42
- Color: Carbon
- Manufacturer Part Number: JTR801.42
Fits the following:
- Kawasaki AR50 50: 1982
- Kawasaki AR80 80: 1982
- Kawasaki KLX110: 2002-2016, 2018-2020
- Kawasaki KLX110 KLX110CHF: 2017
- Kawasaki KLX110L: 2010-2016, 2018-2020
- Kawasaki KLX110L KLX110DHF: 2017
- Kawasaki KLX110R: 2021-2024
- Kawasaki KLX110R L: 2021-2024
- Kawasaki Z125 Pro BR125: 2017-2024
- Suzuki ALT50: 1983-1984
- Suzuki DR250: 1982-1983
- Suzuki DRZ110: 2003-2005
- Suzuki DRZ400S: 2012-2020
- Suzuki DRZ400SM: 2013-2020
- Suzuki OR50: 1979-1980
- Suzuki Quadrunner 50 LT50 2x4: 1984-1987
- Suzuki RM50: 1978-1980
- Suzuki RM60: 1979-1983
- Suzuki RMX450Z: 2017-2019
- Suzuki RMZ250: 2012-2018, 2020-2022
- Suzuki RMZ450: 2012-2023
- Suzuki TM75 Mini Cross: 1974-1976
- Suzuki TS75: 1977
- Suzuki TS75 Colt: 1975-1976