Wiseco 4445M07550 Kawasaki Ninja Forged Piston Kit CR - ZX1000 ZX-10 4-Stroke 75.50mm 11 1

The Wiseco 4445M07550 is a 4-Stroke Forged Series Piston Kit engineered specifically for the Kawasaki ZX1000 Ninja ZX-10, featuring a 75.50mm bore and an aggressive 11:1 compression ratio. Built to the tightest tolerances, this kit delivers the ultimate combination of high-performance power and long-term durability for street bike applications.

Key Features:

• Engineered, forged, and machined in the USA at Wiseco's facility in Mentor, OH
• Application-specific design — dedicated forging built for the Kawasaki ZX1000 engine
• Aerospace-grade forged aluminum construction increases material density and aligns grain flow for superior strength
• Improved tensile strength optimizes durability and service life over cast alternatives
• Optimized strength-to-weight ratio via dedicated forgings for maximum performance
• 75.50mm bore diameter with 11:1 compression ratio (Ring Set: 2973XG)
• Complete kit — includes piston, high-quality piston rings, wrist pin(s), and circlips

Wiseco is the only aftermarket piston manufacturer in the United States that produces pistons exclusively using the forging process. Starting with aerospace-grade aluminum, forging compresses the material's molecules to increase density and align the alloy's grain flow — resulting in a piston that resists impact and fatigue while offering superior ultimate strength and ductility compared to cast alternatives. Each design is developed using 3D design techniques and finite element modeling software to ensure maximum strength at minimum weight.

Note: Oversize pistons require cylinder boring or sleeving to the appropriate diameter. Sold individually — one piston kit per purchase. Ring set cross-reference: 2973XG.