CYLINDER FULL KIT 100MM HONDA CRF 450 02-08, ATHENA P400210100001 490CC BIG BORE, (piston included)

Athena Big Bore Cylinder Kit 490cc for Honda CRF 450

Enhance the performance of your Honda CRF 450 with this Athena Big Bore Cylinder Kit. Engineered in Italy by Athena's dedicated R&D department, this kit offers a significant increase in displacement to 490cc, boosting power output without compromising reliability.

The cylinder features a 100mm bore diameter and is coated with Athena's proprietary motor-nicksil, a nickel-silicon coating designed for superior smoothness and wear resistance. This high-quality aluminum cylinder, along with a complete piston, piston pin, rings, and all necessary gaskets, is included to ensure a comprehensive upgrade.

Athena's Big Bore Cylinder Kits are globally recognized for their performance, durability, and reliability. The components are rigorously tested by Athena technicians through demanding bench and road tests to withstand extreme temperatures, pressures, and stresses. This kit is designed for installation without requiring any modifications to the engine crankcase.

Key Features:

• Displacement: 490cc
• Bore Diameter: 100.00 mm
• Compression Ratio: 11.6:1
• Includes aluminum cylinder, complete piston kit, and all necessary gaskets
• Motor-nicksil coating for durability and smoothness
• Designed for increased performance while maintaining reliability
• No crankcase modifications required for installation