What is a 'big bore' kit?

A big bore kit increases the engine's displacement by using a larger diameter cylinder and piston. This generally results in more torque and horsepower.

What does the molybdenum coating on the piston do?

The molybdenum coating on the piston helps to reduce friction between the piston and the cylinder wall. This can lead to improved wear resistance and potentially better performance.

Do I need any other parts to install this kit?

While this is a complete cylinder kit, it's recommended to consult the manufacturer's installation guide. You may need additional gaskets, fluids, or other related engine components depending on the condition of your current engine.

Athena

Athena 09-15 Kawasaki KX 450 Complete Big Bore Cylinder Kit

Name: Athena 09-15 Kawasaki KX 450 Complete Big Bore Cylinder Kit
Brand: Athena
Price: 929.11 USD
Availability: InStock

$929.11

Fits 2009-2015 Kawasaki KX450F. This Athena Big Bore Cylinder Kit adds displacement for more power.

Key Features

Direct fit — verified for 2009-2015 Kawasaki KX450F
Aluminum cylinder with galvanic coating — durable construction
Forged piston with molybdenum coating — reduces friction and wear
Increases engine displacement — for more power

Fits this vehicle

Kawasaki KX450F 2009-2015

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Product Details

Already running a performance exhaust and intake? This Athena Big Bore Cylinder Kit is the next piece to unlock more power from your 2009-2015 Kawasaki KX450F. It increases the engine's displacement, giving you more torque and horsepower right where you need it.

This kit includes an aluminum cylinder with a galvanic coating. The forged piston comes with a molybdenum coating, which helps reduce friction and improve wear resistance.