What is the bore size for this piston ring set?

This Athena piston ring set is designed for engines with a 58mm bore. It is intended for 144cc engine builds.

What is the benefit of the molybdenum coating on the piston?

The molybdenum coating on the forged piston helps to reduce friction between the piston and cylinder wall. This can contribute to improved durability and smoother operation.

Can this part be shipped to California?

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

Athena

Athena 03-07 Kawasaki KX 125 L.C. 144cc 58mm Bore Piston Ring Set

Name: Athena 03-07 Kawasaki KX 125 L.C. 144cc 58mm Bore Piston Ring Set
Brand: Athena
Price: 14.94 USD
Availability: InStock

$14.94

Worn-out piston rings cause poor compression and engine performance. This Athena piston ring set is a direct fix for your Yamaha YZ125.

Key Features

Direct fit — verified for Yamaha YZ125 (1997-2021) and Kawasaki KX125 (2003-2005)
58mm bore size — matches specific 144cc engine builds
Forged piston with molybdenum coating — helps with durability and friction reduction
Aluminum cylinder with galvanic coating — offers a durable surface for the rings

Fits these vehicles

Kawasaki KX125 2003-2005
Yamaha YZ125 1997-2021

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Product Details

Worn-out piston rings cause poor compression and engine performance. This Athena piston ring set is a direct fix for your Yamaha YZ125. It's designed for 144cc engines with a 58mm bore.