Description
If you’re running a 2017-2018 Kawasaki KX250F, a big bore cylinder kit is one of the most direct paths to measurable power gains without a complete engine rebuild. The Cylinder Works Big Bore Kit delivers increased displacement and improved airflow characteristics—translating to stronger mid-range and top-end performance. Best of all, it installs as a bolt-on upgrade with zero machine work, so you can get back on the track or trail faster.
This kit includes everything needed for a complete installation: the bored cylinder, Vertex piston, rings, wrist pin, and clips. The Nickel Silicon Carbide plating resists wear and eliminates the need for re-plating, extending cylinder life in demanding conditions. Manufactured in the U.S.A., it maintains strict quality standards while preserving the OEM appearance of your engine bay.
- Kawasaki KX250F 2017-2018
- Direct bolt-on fitment
- Vertex piston included
- Nickel Silicon Carbide plating
- No machine work required
- Complete gasket set included
- USA manufactured
- MPN: 31012-K01






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