PISTON KIT 53MM YAMAHA YZ 85 02-21, ATHENA S5F05300001A 105CC BIG BORE

Athena Forged Piston Kit 53mm for Big Bore Cylinder

This Athena Piston Kit is engineered for performance and reliability, featuring a forged piston crafted from a special high-performance aluminum alloy with a high silicon content. Manufactured using advanced CNC machining for precise tolerances, this piston ensures superior resistance and excellent performance, comparable to or exceeding Original Equipment (OE) standards.

Key Features:

• Forged Piston: Constructed from a high-performance aluminum alloy with high silicon content for enhanced durability and performance.
• Precision Machining: Utilizes cutting-edge CNC machining tools to achieve dimensional tolerances of less than 0.01 mm.
• Optimized Profile: Features a smooth piston profile for regular flow and perfect flame propagation.
• Reduced Friction: Some piston skirts are treated with a molybdenum disulfide coating applied by screen printing to further reduce friction, enhancing performance and durability.
• High-Quality Rings: Includes piston rings produced in Japan with wear-resistant coatings (PVD or chromium nitride) for increased retention and durability, designed to adapt perfectly to the cylinder liner even at low tangential load.
• Complete Kit: This kit contains the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable.
• Engineered in Italy: Developed by Athena's R&D department and tested on engine dynamometer benches and on track for validation under extreme conditions.
• Designed for Big Bore Cylinders: Specifically designed for Athena Big Bore Cylinders.

Technical Specifications:

• Piston Diameter: 52.95 mm
• Big End Pin Diameter: 14x10x41 mm
• Number Of Segments: 1
• Piston Head Type: Flat
• Piston Pin Type: Standard
• Piston Type: Forged
• Net Weight: 0.13 Kg