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Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit

Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit

OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.

  • Nickel silicon carbide (NSC) electroplate bore which allows for tighter tolerances, lower friction and extreme durability
  • Precision diamoned honed to exact dimensions and proper surface finish to ensure ring seal and oil retention
$1,131.34

Original: $3,771.13

-70%
Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit—

$3,771.13

$1,131.34

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Description

OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.

  • Nickel silicon carbide (NSC) electroplate bore which allows for tighter tolerances, lower friction and extreme durability
  • Precision diamoned honed to exact dimensions and proper surface finish to ensure ring seal and oil retention
Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit | 10 Second Racing