Provides superior hardness, up to six times longer service life than a 7075-T6 aluminum crown.

Much lighter than a steel crown, which reduces unsprung mass and improves the bike's responsiveness.

Designed for many Kawasaki and Suzuki models, including RMX 450 Z (2010-2017) and DR 250 S (years 1979-2026).

Induction-hardened, high-carbon steel outer ring → up to 6 times longer service life than a conventional 7075-T6 aluminum ring.

Increases mechanical strength and reduces surface tension, improving durability

Allows original replacement or modification of gear ratios to adapt engine behavior (acceleration vs. top speed).

Heat treatment and bead-blasting to reduce surface tension and improve durability.

Fully heat-treated to withstand the rigors of enduro, motocross and off-road riding.

Designed for ruggedness without compromising performance.

Suitable for both original replacement and modification of the gearing to suit your needs.

Wide compatibility, choice of steel or aluminum depending on use.

Smoother, quieter transmission, reducing vibrations and improving responsiveness.