CYLINDER WORKS CYLINDER KIT YAMAHA YFZ450X/R 2009-0223, 98mm BIG BORE

Cylinder Works +3mm Big Bore Complete Cylinder Kit for the 2009-2018 Yamaha YFZ450R and 2010-2011 Yamaha YFZ450X increases displacement to 478cc. This direct bolt-on upgrade requires no re-plating and includes all necessary components for installation, featuring a matched Vertex piston for durability and performance.

Features

• Direct bolt-on installation with no additional machining required
• Nickel Silicon Carbide plated for extended lifespan
• Honed to exact size for easy piston installation
• Big bore cylinders do not require additional machine work (unless specified)
• Includes all necessary components for installation

Included Items

• Cylinder
• Piston assembly
• Top-end gasket set

Specifications

• Bore: +3mm
• Displacement: 478cc
• Uses Vertex Piston #23403

Cross-Reference OEM Part Numbers

• YAMAHA: 2S2-11311-10-00

Vehicle Fitments

• 2009 Yamaha YFZ450R
• 2010 Yamaha YFZ450R
• 2011 Yamaha YFZ450R
• 2012 Yamaha YFZ450R
• 2013 Yamaha YFZ450R
• 2014 Yamaha YFZ450R
• 2015 Yamaha YFZ450R
• 2016 Yamaha YFZ450R
• 2017 Yamaha YFZ450R
• 2018 Yamaha YFZ450R
• 2009 Yamaha YFZ450RSE Special Edition
• 2010 Yamaha YFZ450RSE Special Edition
• 2011 Yamaha YFZ450RSE Special Edition
• 2012 Yamaha YFZ450RSE Special Edition
• 2013 Yamaha YFZ450RSE Special Edition
• 2014 Yamaha YFZ450RSE Special Edition
• 2015 Yamaha YFZ450RSE Special Edition
• 2016 Yamaha YFZ450RSE Special Edition
• 2017 Yamaha YFZ450RSE Special Edition
• 2018 Yamaha YFZ450RSE Special Edition
• 2010 Yamaha YFZ450X
• 2011 Yamaha YFZ450X
• 2010 Yamaha YFZ450XBB Bill Balance Edition
• 2011 Yamaha YFZ450X SE

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.