Cylinder Works Big Bore Kit 270cc for CRF250R/RX (18–21)
🏁 Cylinder Works Big Bore Kit – 270cc for CRF250R/RX (2018–2021)
Fits Honda CRF250R (2018–2021) & CRF250RX (2019–2021)
Displacement: 270cc | Bore Size: 82.00 mm | Compression: 13.9:1
Upgrade your Honda with the Cylinder Works Big Bore Cylinder Kit, delivering 270cc of high-output performance. This complete, bolt-on kit features a perfectly matched Vertex piston and gaskets, making it the go-to solution for serious power gains without the need for machine work.
📦 What’s Included:
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Big Bore Cylinder (Cast Aluminum, 82.00 mm)
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Vertex Piston Kit (Piston, Rings, Pin, Clips)
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Top-End Gasket Kit
🔧 Key Features:
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🧩 Complete Big Bore Package – Everything you need in one box
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🏁 Nickel Silicon Carbide Sleeve – For strength and reduced friction
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🔊 Low Engine Noise – Vertex piston is matched for quieter performance
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⚙️ OEM Appearance – Looks like stock, performs beyond it
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🛠️ No Machining Needed – Bolt-on performance upgrade
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🇺🇸 Made in the USA – Quality materials and manufacturing
✅ Compatibility:
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2019–2021 Honda CRF250RX
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2018–2021 Honda CRF250R
💬 Why Choose Cylinder Works?
When it’s time to push your CRF250R or CRF250RX beyond stock limits, this 270cc big bore kit offers a massive performance boost in a reliable, easy-to-install package. Trusted by racers and builders alike.
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