Wiseco CK205 Suzuki Hayabusa CR Forged Piston Kit - GSX1340R 13.5 1 84mm

The Wiseco CK205 is a complete high-compression piston kit designed for the Suzuki GSX1340R Hayabusa, delivering a 13.5:1 compression ratio for increased performance over stock. Built around an 84.00mm bore forged piston, this kit is engineered to exceed OEM specifications in strength, heat management, and longevity — making it a popular choice for street performance and track-day builds alike.

Each CK205 kit is manufactured using Wiseco's dedicated forging process, starting with aerospace-grade aluminum alloy. The forging operation compresses and aligns the grain structure of the material, resulting in a piston with superior impact resistance, fatigue strength, and ductility compared to cast alternatives. The finished piston is CNC-machined to tight tolerances and features an optimized cam and barrel skirt profile for precise piston-to-wall fit.

Kit Includes:

• Forged aluminum piston — 84.00mm bore, 13.5:1 compression ratio
• High-performance ring set for extended service life and consistent seal
• Alloy wrist pin — precision-machined for strength and reduced friction
• Circlips for secure wrist pin retention
• Wiseco top-end gasket kit for a complete rebuild-ready package

Key Features:

• Dedicated forging — not a shared blank, but a purpose-built forging for this specific application
• Aerospace-grade aluminum alloy for optimal strength-to-weight ratio
• CNC-machined to the tightest tolerances for consistent fit and performance
• Optimized cam/barrel skirt profile for peak power output and piston longevity
• Compatible with cast iron, chrome, Nikasil, and boron composite cylinder bores
• Made in the USA

The Wiseco CK205 top-end piston kit provides everything needed to complete a high-compression rebuild on the Suzuki GSX1340R Hayabusa. Whether refreshing a high-mileage engine or building for increased performance, this kit delivers race-proven reliability in a complete, convenient package.