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:

• Big Bore Cylinder (Cast Aluminum, 82.00 mm)

• Vertex Piston Kit (Piston, Rings, Pin, Clips)

• Top-End Gasket Kit

🔧 Key Features:

• 🧩 Complete Big Bore Package – Everything you need in one box

• 🏁 Nickel Silicon Carbide Sleeve – For strength and reduced friction

• 🔊 Low Engine Noise – Vertex piston is matched for quieter performance

• ⚙️ OEM Appearance – Looks like stock, performs beyond it

• 🛠️ No Machining Needed – Bolt-on performance upgrade

• 🇺🇸 Made in the USA – Quality materials and manufacturing

✅ Compatibility:

• 2019–2021 Honda CRF250RX

• 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.