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Cylinder Works

Cylinder Works Big Bore Kit 295cc - 21009-K01 - 1999-2023 Yamaha YZ250

Regular price $899.96 USD
Regular price $999.95 USD Sale price $899.96 USD
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Cylinder Works Big Bore Kit 295cc - 21009-K01 - 1999-2023 Yamaha YZ250

Boost your Yamaha YZ250’s power with the Cylinder Works Big Bore 72mm Cylinder Kit. Designed as a direct bolt-on replacement, this kit delivers enhanced performance with the same look and durability as the OEM cylinder—no re-plating required!

What’s Included:

  • Ready-to-install Big Bore Cylinder (72mm)
  • Matched Vertex Piston for top performance and longevity
  • Complete set of gaskets, pistons, rings, pins, and clips for hassle-free installation
  • Nickel Silicon Carbide Plating for superior durability

Key Benefits:

  • Direct Bolt-On Installation: No re-plating needed, making it a straightforward upgrade.
  • Enhanced Performance: Increased power and engine longevity for a better riding experience.
  • Reduced Engine Noise: Enjoy a smoother, quieter engine with improved reliability.
  • Complete Installation Kit: Everything you need in one package, including the cylinder, piston kit, gaskets, power valve kit, and more!

Kit Specifications:

  • Compression Ratio: STD
  • Bore Diameter: 72.00mm
  • Displacement: 295cc
  • Cylinder Works Part Number: 21009-K01

Fits Yamaha YZ250 Models (1999-2023)

Upgrade your YZ250 to a 295cc powerhouse and ride with confidence! Order the Cylinder Works Big Bore Kit today and experience the next level of performance and durability.

Fast shipping and satisfaction guaranteed. Get yours now and take your bike to new heights!

Click to see all the other performance parts for your Yamaha YZ250 / YZ250X

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