Product description
The Athena Big Bore Piston Kit For Kawasaki KX125 2003-2007 Size B is part of the latest collection from Athena.
Features:
- 2-stroke cast piston for Athena big bore cylinder
- High resistance to mechanical thermal stresses
- Made with cutting edge CNC machining tools that ensures dimensional tolerances of less than 0.01 mm
- Has been tested on engine dynamometer benches under progressive stress load, and thereafter on track to validate it performance even in the most extreme conditions
- The rings adapt to the cylinder liner even at low tangential load
- Kit includes cast piston, wrist pin, circlips and piston rings
Specifications:
- Bore Size: 57.95 mm
- Compression Ratio Imperial: Stock
- Compression Ratio: Stock
- Displacement: 125 cc
- Engine Type: 2-Stroke
- Piston Head Shape: Flat Top
- Piston Material: 4032 Aluminum Alloy
- Product Name: Piston Kit
- Type: B
- Units: Kit
To fit:
- KAWASAKI KX 125 M 2003 All Models
- KAWASAKI KX 125 M 2004 All Models
- KAWASAKI KX 125 M 2005 All Models
- KAWASAKI KX 125 M 2006 European Models
- KAWASAKI KX 125 M 2007 European Models
Manufacturer part number: S4C05800002B
View all Athena. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Athena Big Bore Piston Kit For Kawasaki KX125 2003-2007 Size B
To fit:
- KAWASAKI KX 125 M 2003 All Models
- KAWASAKI KX 125 M 2004 All Models
- KAWASAKI KX 125 M 2005 All Models
- KAWASAKI KX 125 M 2006 European Models
- KAWASAKI KX 125 M 2007 European Models

Athena offers high performance motorcycle parts designed for off-road vehicles. Known for durability and precision, their product range includes cylinder kits, gaskets, and pistons, tailored for motocross, enduro motor bikes and ATVs. Trusted by riders across the world, Athena's hard parts improve engine performance and reliability, making them a favourite in competitive and recreational off-road motorcycle riding.
Product description
The Athena Big Bore Piston Kit For Kawasaki KX125 2003-2007 Size B is part of the latest collection from Athena.
Features:
- 2-stroke cast piston for Athena big bore cylinder
- High resistance to mechanical thermal stresses
- Made with cutting edge CNC machining tools that ensures dimensional tolerances of less than 0.01 mm
- Has been tested on engine dynamometer benches under progressive stress load, and thereafter on track to validate it performance even in the most extreme conditions
- The rings adapt to the cylinder liner even at low tangential load
- Kit includes cast piston, wrist pin, circlips and piston rings
Specifications:
- Bore Size: 57.95 mm
- Compression Ratio Imperial: Stock
- Compression Ratio: Stock
- Displacement: 125 cc
- Engine Type: 2-Stroke
- Piston Head Shape: Flat Top
- Piston Material: 4032 Aluminum Alloy
- Product Name: Piston Kit
- Type: B
- Units: Kit
To fit:
- KAWASAKI KX 125 M 2003 All Models
- KAWASAKI KX 125 M 2004 All Models
- KAWASAKI KX 125 M 2005 All Models
- KAWASAKI KX 125 M 2006 European Models
- KAWASAKI KX 125 M 2007 European Models
Manufacturer part number: S4C05800002B
View all Athena. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Athena Big Bore Piston Kit For Kawasaki KX125 2003-2007 Size B
To fit:
- KAWASAKI KX 125 M 2003 All Models
- KAWASAKI KX 125 M 2004 All Models
- KAWASAKI KX 125 M 2005 All Models
- KAWASAKI KX 125 M 2006 European Models
- KAWASAKI KX 125 M 2007 European Models

Athena offers high performance motorcycle parts designed for off-road vehicles. Known for durability and precision, their product range includes cylinder kits, gaskets, and pistons, tailored for motocross, enduro motor bikes and ATVs. Trusted by riders across the world, Athena's hard parts improve engine performance and reliability, making them a favourite in competitive and recreational off-road motorcycle riding.































