02-08 Honda CRF450R
Honda CRF450R CRF 450R 100mm 490cc Big Bore ATHENA Cylinder & Gasket Kit

Athena / AZ Quad Parts Conglomerate Kit

100mm 490cc Big Bore Cylinder Top End Kit!

This Is The Best Big Bore Kit On The Market!

Fits Honda CRF450R

Select Year At Checkout

This kit includes:
  • 100mm 490cc Nikasil Athena Big Bore Cylinder
  • Athena Complete Top End Gasket Set

This is a bolt on kit with no machining required. It will work with your stock head and valves. All parts come with warranty


Price: $0

FREE STANDARD SHIPPING is available in all US lower 48 states, APO addresses, and Puerto Rico via USPS or UPS. (*Exceptions apply for Alaska and Hawaii.)
Free standard shipping means we will select an option that gets you your parts as soon as possible while still being economically priced.

*Shipments to Alaska and Hawaii are free as long as the parts will fit in a USPS Priority Mail Flat Rate box or envelope.
For any other type of shipping there will be a charge.


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