This valve kit includes 2 valves, 2 springs, 2 seats, and 2 retainers everything shown in the picture. Key features include:
Nitride-coated components: Improve heat transfer and reduce carbon build-up, enhancing the lifespan of the valve train.
Valves: Forged from a single piece for weight reduction and improved flow, made from 21-2N/SUH35HT stainless steel.
Springs: Made from SWOSC-V material (oil-tempered steel wire).
Progressive springs: Feature more coils on one end and should always be installed with the heavier end towards the bottom.
Non-progressive springs: Paint-marked to indicate the top and should be installed at the top of the spring.
Seats: Made from 4041 steel, offering added durability.
Retainers: Made from 7075-T6 aluminum for strength and lightweight performance.
Compatible with the following Suzuki models:
2005 RM-Z450
2006 RM-Z450