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Athena
480cc Big Bore Cylinder Kit
$908.95 
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Item Availability status
Available - Usually leaves our warehouse in 2 business day(s).
All 2005 Honda TRX450R Parts
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Product Description
Athena 480cc Big Bore Cylinder Kit

  • Bolt on kit, no machining required
  • Aluminum cylinder with nickel-carbide coating designed with wider water jackets
  • Complete piston kit, Forged piston with molybdenum coating
  • Complete top end gasket set
  • Easy to follow step-by-step installation instructions
  • Average power gains of 5hp can be seen in most models

Compression ratios are as follows

  • YZ/WR450F Kit has 12.4:1
  • TRX450R 04/05 Kit has 10.7:1
  • YFZ450 04-07 Kit has 12:1
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