What is the benefit of the galvanic coating on the cylinder?

The galvanic coating on the aluminum cylinder provides a hard, wear-resistant surface for the cylinder bore. This helps ensure a long service life and consistent performance.

Why is a forged piston used in this kit?

A forged piston is stronger and more durable than a cast piston, making it better suited for the demands of an engine like the YZ125. The molybdenum coating further reduces friction and aids in the piston's break-in period.

Can this cylinder kit be shipped to California?

No, this Athena cylinder kit is not CARB approved and cannot be shipped to California due to emissions regulations.

Athena

Athena 97-04 Yamaha YZ 125 Stock Bore Complete Cylinder Kit

Name: Athena 97-04 Yamaha YZ 125 Stock Bore Complete Cylinder Kit
Brand: Athena
Price: 921.05 USD
Availability: InStock

$921.05

Fits 1997-2004 Yamaha YZ125. This Athena cylinder kit includes an aluminum cylinder with a galvanic coating and a forged piston with molybdenum coating.

Key Features

Direct fit — verified for 1997-2004 Yamaha YZ125
Aluminum cylinder — lightweight and helps with heat dissipation
Galvanic coating — provides a hard, wear-resistant surface for the cylinder bore
Forged piston — stronger than cast pistons, built to handle higher performance
Molybdenum coating on piston — reduces friction and improves break-in

Fits this vehicle

Yamaha YZ125 1997-2004

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Product Details

Athena makes this cylinder kit for the 1997-2004 Yamaha YZ125.

This is a complete cylinder kit from Athena, designed to replace the stock cylinder on your 1997-2004 Yamaha YZ125. It comes with everything needed to rebuild the top end of your engine, using an aluminum cylinder with a durable galvanic coating and a forged piston that's treated with molybdenum for better wear resistance.