CYLINDER FULL KIT 100mm 2009-2015 KAWASAKI KX 450 ATHENA P400250100015 490CC BIG BORE (Piston included)

A big bore cylinder kit (Ø100 mm, 490 cc) engineered to increase performance across the power curve while maintaining reliability comparable to original components. Developed and tested in Italy, it features a lightweight aluminium cylinder with a nickel–silicon coated bore and a complete piston package. Supplied with piston, pin, rings and all required gaskets, and installable without modifications to the engine crankcase.

Features

• Aluminium cylinder with nickel–silicon (motor-nicksil) coating for smoothness and wear resistance
• Developed to increase performance while retaining original-level reliability
• Complete kit including piston, piston pin, piston rings and gaskets
• Components validated through bench and road testing
• Designed to withstand high temperatures, pressures and stresses
• Can be installed without modifications to the engine crankcase
• Use must comply with applicable national regulations

Specifications

• Bore diameter: 100.00 mm
• Bore gain: +4 mm
• Displacement: 490 cc
• Compression ratio: 12.0:1
• Contents: Aluminium cylinder, piston, piston pin, piston rings, gaskets

Cross-Reference OEM Part Numbers

• S4F100000190 (Piston Kit 100)
• P400250160012 (Gaskets Kit)
• S41316178 (Rings)
• S41317057 (Piston Pin)

Vehicle Fitments

• Kawasaki KX450F 2009–2015