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CRF50 Z50 & XR50


Stock Specifications


CRF50F 2004-Present

  • Front tire - 2.50 x 10'' / Rear tire - 2.50 x 10''
  • Front sprocket - 14 Tooth / Rear sprocket - 37 Tooth
  • Chain - 420 x 78 Links
  • Spark plug - NGK C6HSA
  • Main jet - 58


XR50 2000-2003

  • Front tire - 2.50 x 14'' / Rear tire - 3.00 x 12''
  • Front sprocket - 14 Tooth / Rear sprocket - 37 Tooth
  • Chain - 420 x 88 Links
  • Spark plug - NGK C6HSA


Z50 1972-1981

  • Front tire - 3.50 x 8'' / Rear tire - 3.50 x 8''
  • Front sprocket - 12 Tooth / Rear sprocket - 37 Tooth
  • Chain - 420 x 76 Links
  • Spark plug - NGK C6HSA


Z50R 1982-1987

  • Front tire - 3.50 x 8'' / Rear tire - 3.50 x 8''
  • Front sprocket - 13 Tooth / Rear sprocket - 37 Tooth
  • Chain - 420 x 76 Links
  • Spark plug - NGK C6HSA


Z50R 1988-1999

  • Front tire - 3.50 x 8'' / Rear tire - 3.50 x 8''
  • Front sprocket - 14 Tooth / Rear sprocket - 37 Tooth
  • Chain - 420 x 76 Links
  • Spark plug - NGK C6HSA