PISTON KIT 58mm YAMAHA YZ 125 97-26, ATHENA S4C05800003B 144CC BIG BORE

Athena Cast Piston Kit - 58mm Bore for Big Bore Cylinder

Enhance the performance of your motorcycle with this Athena Cast Piston Kit. Designed for big bore cylinder applications, this kit is crafted with cutting-edge CNC machining to ensure precise dimensional tolerances. Made from a special high-performance aluminum alloy with a high silicon content, these pistons offer the reliability of OE parts with improved resistance and excellent performance.

The piston features a smooth profile for optimized airflow and flame propagation. Some piston skirts are treated with a molybdenum disulfide coating to further reduce friction, boosting performance and durability.

Athena engineers employ advanced technical solutions and maintain the highest quality standards, comparable to or exceeding OE production, ensuring both performance and reliability. Each piston is meticulously engineered and tested on dynamometer benches and on the track to validate performance under extreme conditions.

This piston kit includes the piston, pin, circlips, and piston rings. All components are designed to be replaceable and interchangeable.

Key Features:

• Material: High-performance aluminum alloy with high silicon content.
• Manufacturing: Precision CNC machined for tolerances less than 0.01 mm.
• Friction Reduction: Some models feature a molybdenum disulfide coating.
• Piston Rings: Produced in Japan with wear-resistant coatings (PVD or chromium nitride) for increased durability.
• Included Components: Piston, pin, circlips, and piston rings.
• Piston Head Type: Flat
• Piston Type: Melted
• Piston Pin Type: Biconical
• Big End Pin Diameter: 15x10x45 mm
• Bore Diameter: 57.95 mm
• Weight: 0.18 Kg (Net)
• Number Of Segments: 1

Note: Products designed for displacements and power exceeding road code regulations are intended exclusively for competitive use. Athena assumes no responsibility for any use contrary to national regulations.