PISTON KIT 100MM HONDA CRF 450 09-16, ATHENA S4F100000180 490CC BIG BORE
ATHENA Forged Racing Piston Kit, 100MM Bore Diameter, 450cc Displacement. Features a special high-performance aluminum alloy with high silicon content for reliability, resistance, and excellent performance. Some piston skirts have a molybdenum disulfide coating to reduce friction and enhance performance and durability. Piston rings are produced in Japan with wear-resistant coatings for increased strength and durability. This kit includes the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable. Technical features: Big End Pin Diameter 19x10x45mm, Bore Diameter 99.96mm, Compression Height 29.00mm, Compression Ratio 12.5:1, Displacement 450cc, Net Weight 0.36Kg, Number Of Segments 2, Piston Pin Type Biconical, Piston Type Forged. Partner Cross Reference code: Piston Ring set S41316178.
- SKU
- 56-K142.100.PI
- Brand
- Athena
- Availability
- In Stock (1)
FULL DESCRIPTION
Athena Forged Piston Kit 100mm for Big Bore Cylinder
This Athena forged racing piston kit is designed for Big Bore cylinder applications. Manufactured by Athena, a leader in motorcycle spare parts for over 40 years, these pistons are produced using advanced reverse extrusion and cutting-edge CNC machining tools to ensure precise dimensional tolerances.
Key Features:
- High-Performance Alloy: Made from a special high-silicon content aluminum alloy, providing OE-level reliability with enhanced resistance and excellent performance.
- Precision Machining: CNC machined to dimensional tolerances of less than 0.01 mm for optimal fit and function.
- Smooth Profile: Designed for a regular flow and perfect flame propagation.
- Friction Reduction: Some piston skirts feature a molybdenum disulfide coating applied by screen printing to further reduce friction, boosting performance and durability.
- Advanced Engineering: Developed with advanced technical solutions and high-quality standards, equal to or better than OE production.
- Rigorous Testing: Each piston is engineered in Italy and tested on engine dynamometer benches and on track in extreme conditions.
- Included Components: The kit contains the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable.
- Premium Piston Rings: Rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) for increased retention and durability, adapting perfectly to the cylinder liner even at low tangential loads.
Technical Specifications:
- Piston Type: Forged
- Bore Diameter: 99.96 mm
- Compression Height: 29.00 mm
- Compression Ratio: 12.5:1
- Number Of Segments: 2
- Big End Pin Diameter: 19x10x45 mm
- Piston Pin Type: Biconical
- Net Weight: 0.36 Kg
Note: Products intended for competitive sports use or high-performance applications may not be subject to the standard warranty unless a clear faultiness is present. Products manufactured with increased displacement and power beyond road code limits are exclusively for competitive use.


