1987 Yamaha
YZ125
  • Drive Type: Chain
  • Front Tire Size: 80/100-21
  • Rear Tire Size: 100/100-18
  • Spark Plug: B9EG
  • Chain Size: 520
  • Chain Links: 112
  • Front Sprocket/Pulley Teeth: 13
  • Rear Sprocket/Pulley Teeth: 50
For reference only, please consult your owner’s manual to confirm your sizes
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