PISTON KIT A 80MM KTM EXC-F/SX-F 250 06-13, ATHENA S4F08000004A FOR 290CC BIG BORE, KIT A
Athena Forged Racing Piston Ø 79.96 mm for Athena Big Bore Cylinder - S4F08000004A. This piston kit contains the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable. Features include a Biconical Piston Pin Type, 79.96 mm Bore Diameter, 13.5:1 Compression Ratio, 250 cc Displacement, 0.22 Kg Net Weight, and 2 Segments. Produced with cutting-edge CNC machining tools, Athena pistons are made of a special high-performance aluminum alloy with high silicon content for reliability, resistance, and excellent performance. Some piston skirts are treated with a molybdenum disulfide coating to reduce friction. Rings are produced in Japan with wear-resistant coatings. Intended exclusively for competitive use.
- SKU
- 56-K128.80.PIA
- Brand
- Athena
- Availability
- In Stock (2)
FULL DESCRIPTION
Athena Forged Racing Piston Kit A - 80mm Bore
This Athena Forged Racing Piston Kit is engineered for enhanced performance and durability. Crafted from a special high-performance aluminum alloy with a high silicon content, these pistons offer the reliability of OE parts with improved resistance and performance. The cutting-edge CNC machining ensures precise dimensional tolerances of less than 0.01 mm.
Key Features:
- Piston Type: Forged
- Bore Diameter: 79.96 mm
- Number Of Segments: 2
- Piston Pin Type: Biconical
- Big End Pin Diameter: 16x8x44 mm
- Compression Ratio: 13.5:1
- Displacement: 250 cc
- Net Weight: 0.22 Kg
- Friction Reduction: Some pistons feature a molybdenum disulfide coating on the skirts, applied by screen printing, to further reduce friction and enhance performance and durability.
- High-Quality Rings: Piston rings are produced in Japan with wear-resistant coatings (PVD or chromium nitride) to increase retention and durability. They are designed to adapt perfectly to the cylinder liner even at low tangential load, ensuring less friction and higher performance.
- Complete Kit: This kit includes the piston, pin, circlips, and piston rings. All components are replaceable and interchangeable.
- Engineered and Tested: Each piston is engineered in Italy and tested on engine dynamometer benches and on track for validation in extreme conditions.
For Big Bore Cylinder Kits. Intended exclusively for competitive use where displacement and power exceed road code regulations. Athena disclaims responsibility for any use contrary to national regulations.
