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NLA 08/18 ATHENA YZ250-300CC BIG BORE KT

  • Part Number

    DBY-ACC56-34-48
  • Description

    NLA 08/18 ATHENA YZ250-300CC BIG BORE KT
  • Price

    2433.20
  • This part is not available for sale.

Description

This 300cc Big Bore Kit by Athena increases YZ250 displacement to 293cc. Cylinder is nickel-carbide plated with enlarged water passages for exceptional durability and performance. Bore increased to 72mm (stock is 66.4mm); stroke remains the same as stock (72mm). 15:1 compression ratio. Forged, domed piston. No case machining necessary.


Kit includes:


  * Cylinder  * Head  * Piston  * Rings  * Pin  * Clips  * Power valve assembly  * All required gaskets

Fits:

  • 2009 – 2016 YZ250
  • 2016 YZ250X