CYLINDER FULL KIT 98MM YAMAHA YFS 450 04-11, ATHENA P400485100016 FOR 478CC BIG BORE, (Piston included)

Athena 478cc Big Bore Cylinder Kit - 98mm Bore Diameter

Upgrade your motorcycle's performance with this Athena Big Bore Cylinder Kit. Engineered and designed in Italy by Athena's expert R&D Department, this kit offers a significant increase in engine displacement to 478cc, utilizing a 98mm bore diameter.

The cylinder features Athena's proprietary Mo-Nikasil coating, a nickel-silicon alloy developed for superior smoothness and exceptional wear resistance, ensuring longevity and optimal performance. This kit is recognized worldwide for its quality, durability, and reliability, delivering noticeable power gains across the entire power curve while maintaining the reliability of original components.

This comprehensive kit includes:

• High-quality aluminum cylinder with an increased bore diameter (98.00 mm)
• Complete piston assembly, including piston, piston pin, and rings
• All necessary gaskets for a complete installation

Athena components are rigorously tested under severe bench and road conditions to withstand the highest temperatures, pressures, and stresses. Importantly, this Big Bore Cylinder Kit can be installed without requiring any modifications to the engine crankcase.

Technical Specifications:

• Bore Diameter: 98.00 mm
• Displacement: 478 cc
• Net Weight: 1.15 Kg

Please Note: All Athena products must be used in compliance with applicable national regulations. Athena disclaims responsibility for any improper use.