The KB Hypereutectic alloy pistons are a true marvel in the world of motorcycle engines. Crafted with a 16% high silicon content, these pistons boast exceptional thermal barrier properties and a low thermal expansion rate, making them the perfect choice for air-cooled engines. The tight piston to cylinder wall clearances provided by these pistons ensure optimal ring seal, resulting in quieter engine running and reduced wear over time.

Designed for stock or mild compression ratios up to 10.5:1 running on pump fuel, these pistons are a reliable choice for Harley Davidson motorcycles. The high-quality construction of the KB Hypereutectic alloy pistons ensures durability and longevity, giving riders peace of mind knowing that their engine is equipped with top-notch components.

Whether you’re cruising down the open road on a Harley Davidson FLHR Road King or tearing up the streets on a FXDWG Dyna Wide Glide, these pistons will deliver the performance and reliability you need. With a wide range of fitment options available, you can easily find the perfect set of pistons for your specific motorcycle model.

Upgrade your engine with the KB Hypereutectic alloy pistons and experience the difference in performance and durability. Trust in the quality and craftsmanship of these pistons to enhance your riding experience and keep your Harley Davidson running smoothly for years to come.

KB Hypereutectic alloy pistons are cast with a 16% high silicon content that has very high thermal barrier properties along with a low thermal expansion rate, allowing tight piston to cylinder wall clearances. This makes them ideal for air-cooled engines, offering optimal ring seal, quieter engine running and reduced wear. Hypereutectics are best suited for stock or mild compression ratios up to 10.5:1 running on pump fuel.