What is the bore size of this cylinder kit?

This Athena cylinder kit has a 54mm bore size. This matches the stock bore size for the specified Yamaha YZ125 models.

What materials are used in this cylinder kit?

The cylinder is made of aluminum with a galvanic coating for wear resistance. The included piston is forged and features a molybdenum coating to help reduce friction.

Does this kit include all necessary parts for installation?

This kit includes the aluminum cylinder and a forged piston. It is recommended to check the manufacturer's instructions for any additional hardware or gaskets that may be required for installation.

Athena

Athena 97-04 Yamaha YZ 125 LC Factory 54mm Cylinder

Name: Athena 97-04 Yamaha YZ 125 LC Factory 54mm Cylinder
Brand: Athena
Price: 367.32 USD
Availability: InStock

$367.32

Fits 1997-2004 Yamaha YZ125. Athena LC Factory 54mm Cylinder Kit with aluminum cylinder and forged piston.

Key Features

Direct fit — verified for 1997-2004 Yamaha YZ125
Aluminum cylinder construction — lightweight and durable
Galvanic coating on cylinder — adds wear resistance
Forged piston with molybdenum coating — reduces friction
54mm bore size — matches stock specifications

Fits this vehicle

Yamaha YZ125 1997-2004

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Product Details

Athena makes this LC Factory 54mm Cylinder Kit for the 1997-2004 Yamaha YZ125. This kit replaces the stock cylinder with a well-built aluminum unit designed for improved performance.

The cylinder features a galvanic coating for durability. It comes with a forged piston that has a molybdenum coating, which helps reduce friction during operation.