Cylinder Works Big Bore Cylinder Kit 99Mm Bore Yamaha Yz450 10-11
Cylinder Works BigBore Cylinder Kit
Ready to unlock more power? Cylinder Works big bore cylinder kits are the no-hassle way to increase displacement and boost horsepower — without expensive machining or lengthy turnaround times. Each kit arrives ready to install, engineered to fit your bike like OEM, while delivering a serious performance upgrade.
At the heart of every kit is a new cast aluminium Nikasil electroplated cylinder bored to an increased diameter, paired with a Vertex forged piston featuring Molybdenum Disulphide coating for faster break-in and long-lasting durability. A complete top-end gasket set is included so you have everything needed for a clean, professional rebuild.
Whether you're chasing lap times or just want more grunt on the trails, Cylinder Works big bore kits give you a competitive edge — straight out of the box.
Kit includes: Big bore cylinder · Vertex piston · Rings · Wrist pin · Circlips · Top-end gasket set
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