CYLINDER FULL KIT 98mm 06-15 YAMAHA YZ WR 450 ATHENA P400485100021 480CC BIG BORE (PISTON INCLUDED)

Athena Big Bore Cylinder Kit - 480cc

Upgrade your motorcycle's performance with the Athena Big Bore Cylinder Kit. This kit is meticulously engineered in Italy by Athena's dedicated R&D department, utilizing advanced design and testing tools. The cylinder features a Motor-Nicksil coating, a proprietary nickel-silicon blend developed by Athena for superior smoothness and exceptional wear resistance.

Athena's big bore kits are globally recognized for enhancing performance, durability, and reliability. This kit provides a noticeable increase in power across the engine's RPM range while maintaining the reliability expected from original components.

The complete kit includes:

• A high-quality aluminum cylinder with an increased bore diameter.
• A complete piston assembly, including piston pin and rings.
• All necessary gaskets for installation.

Every component in this kit is designed to withstand extreme temperatures, pressures, and stresses, having undergone rigorous testing by Athena technicians on both dynamometers and public roads. This cylinder kit can be installed without requiring any modifications to the engine crankcase.

Technical Specifications:

• Bore Diameter: 98.00 mm
• Compression Ratio: 12.4:1
• Displacement: 480 cc
• Net Weight: 2.25 kg