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PISTON KIT A 58MM KAWASAKI KX 125 03-07, ATHENA S4C05800002A 144CC BIG BORE, KIT A

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ATHENA Cast Piston Kit for Big Bore Cylinder Kit S4C05800002A. Piston diameter 57.94 mm, Big End Pin Diameter 15x10x45 mm, displacement 125 cc, weight 0.19 Kg. Features a flat piston head and biconical piston pin. Includes piston, pin, circlips, and piston rings. Rings are made in Japan with wear-resistant coatings. Components are replaceable and interchangeable. Intended for competitive use where displacement and power exceed road code regulations.

Specifications
SKU
56-K122.58_PIA
Brand
Athena
Availability
In Stock (1)

Fitments (5)

MakeModelYear
KAWASAKIKX 1252003
KAWASAKIKX 1252004
KAWASAKIKX 1252005
KAWASAKIKX 1252006
KAWASAKIKX 1252007
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
252734
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Athena Piston Kit A 58mm for Big Bore Cylinder Kit

This Athena Piston Kit is designed for big bore cylinder applications, offering enhanced performance and durability for your motorcycle. Crafted with precision and advanced engineering, this kit is engineered to meet the demands of high-performance riding.

Athena pistons are manufactured using a specialized high-silicon aluminum alloy and cutting-edge CNC machining to achieve incredibly tight dimensional tolerances. This ensures exceptional reliability, comparable to Original Equipment (OE) pistons, while providing superior resistance and improved performance. The smooth piston profile promotes efficient fuel flow and optimal flame propagation.

Some pistons feature a molybdenum disulfide coating applied via screen printing to the skirt. This treatment further reduces friction, contributing to enhanced performance and extended durability.

Each Athena piston is meticulously engineered in Italy and rigorously tested on engine dynamometers and on track to validate performance under extreme conditions.

This piston kit includes the piston, pin, circlips, and piston rings. All components are designed for interchangeability.

Key Features:

  • High-performance aluminum alloy with high silicon content.
  • Precision CNC machining for dimensional accuracy less than 0.01 mm.
  • Special molybdenum disulfide coating on some piston skirts to reduce friction.
  • Engineered and tested for extreme conditions.
  • Includes piston, pin, circlips, and piston rings.
  • Piston rings produced in Japan with wear-resistant coatings for increased durability.

Technical Specifications:

  • Big End Pin Diameter: 15x10x45 mm
  • Bore Diameter: 57.94 mm
  • Displacement: 125 cc
  • Net Weight: 0.19 Kg
  • Number Of Segments: 1
  • Piston Head Type: Flat
  • Piston Pin Type: Biconical
  • Piston Type: Melted
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

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