745406 Kb Hypereut Xr1200 Xb12 Piston Kit 005

Engineered by legendary engine builder Keith Black, these hypereutectic cast pistons offer a high-performance alternative to traditional forged options for Sportster and Buell XB models. By using a proprietary aluminium alloy, these pistons achieve minimal thermal expansion, allowing for tighter piston-to-wall clearances and a quieter-running top end. This design significantly reduces wear while improving oil control and fuel economy. The high ring placement helps combat detonation, allowing the engine to produce maximum power more efficiently. This kit is sold as a set and comes complete with two pistons, high-quality Hastings chrome moly rings, piston pins, and circlips. Whether you are performing a standard refresh or looking for a more reliable performance setup, these pistons provide the durability and precision required for demanding V-twin engines.