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

• 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

• 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