Specifications
- Brand
- Athena
- Part #
- S4F05400017A
- UPC
- 8050444893890

Athena 05-21 Yamaha YZ 125 2T Forged Racing Piston Bore 53.95mm for OE Cylinder
$120.60
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Athena forged racing piston for 2005-2021 Yamaha YZ 125 2T. Bore 53.95mm for OE cylinder.
Key Features
- Fits 2005-2021 Yamaha YZ 125 2T.
- Forged racing piston with a 53.95mm bore.
- Designed to fit original OE cylinders.
- Made from special high-performance aluminum alloys with nickel and silica.
- Manufactured with CNC machining for tight tolerances (under 0.01 mm).
- Smooth profile promotes regular flow and proper flame propagation.
Product Details
This is an Athena forged racing piston designed for the 2005-2021 Yamaha YZ 125 2-stroke. It has a bore size of 53.95mm and is made to fit the original cylinder. Athena has been making motorcycle spare parts for over 40 years, and these pistons are built with special high-performance aluminum alloys that include nickel and silica. This combination helps them offer reliability similar to the original piston while also providing improved resistance and performance.
The pistons are made using advanced CNC machining tools, which hold very tight dimensional tolerances, down to less than 0.01 mm. This precision ensures a smooth profile for regular flow and proper flame propagation, which can contribute to better combustion. The forged construction means these pistons are well-built for demanding use.
Specifications
- Brand
- Athena
- Manufacturer Part #
- S4F05400017A
- UPC
- 8050444893890
Frequently Asked Questions
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Athena 05-21 Yamaha YZ 125 2T Forged Racing Piston Bore 53.95mm for OE Cylinder
