Athena Race Kit YZ450F 20-.. OEM 97mm

TECHNICAL FEATURES

The YZ450F  engine was developed by Yamaha to make it more compact and lighter, as well as redesigning its configuration and compression ratio. To comply with these new characteristics, the Athena technicians have designed components of the highest quality and precision:

ALUMINUM CYLINDER

Compared to the Yamaha YZ 450 F bikes built before 2020, the Japanese motorbike manufacturer has designed the shape and inclination of the cylinder and oil passages. For this reason, the Athena R&D team has studied and re-engineered the cylinder.

Produced by gravity casting and sustained a rigorous heat treatment to improve its mechanical characteristics, the Athena cylinder ensures maximum resistance even at the highest temperatures. The liner is designed to ensure an exceptionally smooth surface, which will last a lifetime, thanks to a special coating consisting of nickel and silicon carbides.

FORGED PISTON WITH SELF-LUBRICATING AND ANTI-SEIZING COATING

Designed by Athena engineers, which surpasses the original design, exceeding all bench tests, resulting in boosted performance and a higher compression ratio. The Athena piston ensures maximum power both at low/medium and high engine revs.

Manufactured using reverse extrusion with cutting-edge technologies, this forged piston is treated with a molybdenum disulfide coating, which further reduce friction while the flawless surface ensures an ideal flame distribution.

The rings are produced in Japan with wear-resistant coatings to increase the retention and resistance, whereas the piston pin is made of high-quality steel alloy and is processed to obtain maximum hardness.