Description
Cylinder Works big bore cylinder kit for Yamaha YFZ450X (2010-2011) increases engine displacement with a new plated cylinder, a hand-matched forged Vertex piston and top-end gaskets. The matched kit provides the core parts for a big-bore top-end build.
- Part number: 21003-K02YFZ450X2010-2011
- Product type: Big Bore Cylinder Kit
- Application: Yamaha YFZ450X (2010-2011)
- Size over standard: +3mm
- Displacement: 478cc
- Includes: Cylinder, piston kit and top-end gasket kit
- Matched Vertex piston: #23403
Fitment and installation: Confirm the exact model, year, bore, compression ratio and included components before ordering. Professional measurement and assembly are recommended for engine work.
- Brand: Cylinder Works