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FLASHSALE
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Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit
Sale price
$252.95
Regular price $240.99Pickup currently unavailable
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
-5%
-5%
Sale price
$252.95
Regular price $240.99OEM-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
FAQ
Most orders ship within 1–2 business days. Engines and oversized items may require additional handling time. You’ll receive tracking as soon as your order leaves our warehouse.
If a product is backordered, we’ll notify you right away with an estimated restock date. You can choose to wait, swap, or cancel.
Once your order ships, you’ll receive an email with tracking information. You can also log into your account anytime to check order status.
We’ve been in your shoes. From first bolt-ons to full custom builds, our crew can guide you the right way.
Every product we sell is chosen with one goal in mind: helping you build faster, stronger, and more reliable machines.
We team up with the best brands so you can build with confidence.