PISTON KIT 54MM YAMAHA YZ125/GAS GAS EC125 97-21, ATHENA S4C05400016B STD BORE

€107.15
1

Piston kit for Athena cylinder, 54mm bore diameter, 125cc displacement. Features a flat piston head type and biconical piston pin type. Constructed from a special high-performance aluminum alloy with high silicon content. Includes piston rings produced in Japan with wear-resistant coatings, offering reduced friction and increased durability. Kit contains piston, pin, circlips, and piston rings. Technical details: Big End Pin Diameter 15x10x45mm, Bore Diameter 53.95mm, Compression Ratio 14.8:1, Net Weight 0.16kg, Number Of Segments 1, Piston Type Melted. Manufactured by Athena. Part Number: S4C05400016B.

Specifications
SKU
56-K155.54.PKAB
Brand
Athena
Availability
In Stock (1)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
54mm
Variant Id
252962
Shipping OptionsShown at checkout
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Athena 54mm Piston Kit for Yamaha YZ125 and Gas Gas EC125

Upgrade your motorcycle's performance and reliability with this high-quality cast piston kit from Athena. Engineered for precision and durability, this kit is designed to meet or exceed original equipment standards, offering enhanced resistance and excellent performance for your off-road adventures.

Athena pistons are manufactured using advanced CNC machining tools, ensuring dimensional tolerances of less than 0.01 mm. They are constructed from a special high-performance aluminum alloy with a high silicon content. The smooth piston profile promotes regular flow and optimal flame propagation. Some piston skirts feature a molybdenum disulfide coating applied via screen printing to further reduce friction, boosting performance and extending durability.

Developed in Italy by Athena's R&D department, each piston undergoes rigorous testing on engine dynamometer benches and on the track to validate its performance in extreme conditions.

This piston kit includes the piston, pin, circlips, and piston rings. The piston rings are manufactured in Japan with wear-resistant coatings (PVD or chromium nitride) for increased durability. The rings are designed to adapt perfectly to the cylinder liner, even at low tangential loads, ensuring less friction and higher performance.

Key Features:

  • Piston Diameter: 53.95 mm
  • Compression Ratio: 14.8:1
  • Piston Type: Cast
  • Piston Head Type: Flat
  • Piston Pin Type: Biconical
  • Includes piston, pin, circlips, and piston rings
  • Precision manufactured for optimal fit and performance
  • High-performance aluminum alloy with high silicon content
  • Molybdenum disulfide coating on some skirts reduces friction
  • Piston rings made in Japan with wear-resistant coatings
  • Engineered and tested for extreme conditions
  • All components are replaceable and interchangeable

Please note: Products intended for competitive sports use or high-performance applications may not be covered by standard warranty unless a clear faultiness is present.