Athena Yamaha YFZ 450S 2004-2011 Cylinder Kit 478cc ø 98 Big Bore P400485100016

Athena Big Bore Cylinder Kit (P400485100016)

Bike Fitment:

• Yamaha YFZ 450S 2004
• Yamaha YFZ 450S 2005
• Yamaha YFZ 450S 2006
• Yamaha YFZ 450S 2007
• Yamaha YFZ 450S 2008
• Yamaha YFZ 450S 2009
• Yamaha YFZ 450S 2010
• Yamaha YFZ 450S 2011

Specifications:

• Athena's Big Bore kit brings the raw power you have been missing in an easy to install, reliable package that bolts on with no machining needed in most cases, and includes easy-to-follow step-by-step installation instructions.
• Constructed from aluminium, the cylinder is lined with a nickel-carbide coating for durable, reliable performance, and the water jackets have been widened for a higher flow rate, cooling the cylinder, resulting in less power lost due to heat.
• Features a forged piston that's been molybdenum coated for high performance use and extended wear life.
• Includes: Big bore cylinder, big bore piston, piston pin, piston pin rings, gasket kit, Note: to achieve optimum performance re-jet the carburetor with the available jet kits.