Kits include aluminum cylinder with galvanic coating design with forged piston with molybdenum coating.This Part Fits:YearMakeModelSubmodel2009-2010KawasakiKX250FBase

Kits include aluminum cylinder with galvanic coating design with forged piston with molybdenum coating.This Part Fits:YearMakeModelSubmodel2003-2005HusqvarnaTC250Base

The Standard Bore cylinder kit developed by Athena guarantees the same performance as the original spare parts, extreme reliability and optimal smoothness as a result of the lightweight aluminum cylinder, the barrel with nickel-silicon coating, and a...

Athena has been constantly investing in cylinder aftermarket replacement parts for more than ten years, to improve their production and performance. All the cylinders are entirely engineered in Italy by Athena's R&D Department which has a strong internal...

Our cylinders are perfect for stock replacement. They all meet or exceed O.E.M. specifications. They are made of aluminum for your Sportster, aluminum with a steel liner for your Evolution and cast iron for your Shovelhead and Panhead.This Part...

Our cylinders are perfect for stock replacement. They all meet or exceed O.E.M. specifications. They are made of aluminum for your Sportster, aluminum with a steel liner for your Evolution and cast iron for your Shovelhead and Panhead.This Part...

Our cylinders are perfect for stock replacement. They all meet or exceed O.E.M. specifications. They are made of aluminum for your Sportster, aluminum with a steel liner for your Evolution and cast iron for your Shovelhead and Panhead.This Part...

Our cylinders are perfect for stock replacement. They all meet or exceed O.E.M. specifications. They are made of aluminum for your Sportster, aluminum with a steel liner for your Evolution and cast iron for your Shovelhead and Panhead.This Part...

OEM-style cast aluminum replacement cylinder head comes complete with cam caps and bolts for an out-of-the-box, ready-to-go installation. The unshrouded combustion chamber is designed to improve airflow, featuring a blended bowl and competition-grade...

Kits include aluminum cylinder with galvanic coating design with forged piston with molybdenum coating.This Part Fits:YearMakeModelSubmodel1997-2004YamahaYZ125Base

OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.

OEM-style cast aluminum replacement cylinder head comes complete with cam caps and bolts for an out-of-the-box, ready-to-go installation. The unshrouded combustion chamber is designed to improve airflow, featuring a blended bowl and competition-grade...