Full Top End Service Kit
Cylinder Works Standard Bore Cylinder
Vertex A size piston kit (inc pin, clips rings)
Top end gasket set (Vertex, Athena or Prox)
Small end bearing (Vertex, Athena or Prox
Fits: Yamaha YZ 250 1999-2023
Direct bolt-on, ready-to-install cylinder. Doesn't need plating and looks virtually identical to the stock cylinder. Nickel Silicon Carbide plated for long life and honed to exact size for easy installation.
Cylinder Works Standard Bore Cylinder (66.4mm) Yamaha YZ250 99-23 Fantic XX 250 22-23
Cylinder
Works Cylinder – OEM appearing new, not remanufactured, cast aluminum
nickel silicon carbide (NSC) electroplated stock bore cylinder that
appears just like an OE cylinder. NSC is a composite of a nickel and
silicon carbide, providing an excellent wear resistant surface with oil
retention capabilities. Cylinders are then diamond honed to the exact
bore dimension and proper surface finish to ensure the proper ring seal
and oil retention.
Product Features:
- OEM in appearance but a fraction of the price.
- New Cast aluminium.
- Nickel silicon carbide (NSC) electroplate bore which allows for tighter tolerances, lower friction, and extreme durability.
- Precision diamond honed to exact bore dimensions and proper surface finish to ensure ring seal and oil retention.
Includes free UK post
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