CYLINDER WORKS CYLINDER KIT YAMAHA YZ250F 14-18, WR250F 2015-2018, 80mm BIG BORE

Cylinder Works +3mm Big Bore Cylinder Kit for the 2014-2018 Yamaha YZ250F and 2015-2018 Yamaha WR250F increases displacement to 269cc. This direct bolt-on upgrade requires no re-plating and includes 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
• Includes cylinder, piston, rings, pin, clips, and top-end gasket kit
• Big bore cylinder kits do not require additional machine work

Included Items

• Cylinder
• Piston
• Piston rod
• Two circlips
• Piston ring set

Gasket set, including:

• Base gasket
• Engine case gasket
• Exhaust gasket
• Head gasket

Specifications

• Bore: 80mm (+3mm)
• Displacement: 269cc
• Compression Ratio: 13.5:1
• Uses Vertex Piston #23943

Vehicle Fitments

• 2014 Yamaha YZ250F
• 2015 Yamaha YZ250F
• 2016 Yamaha YZ250F
• 2017 Yamaha YZ250F
• 2018 Yamaha YZ250F
• 2015 Yamaha WR250F
• 2016 Yamaha WR250F
• 2017 Yamaha WR250F
• 2018 Yamaha WR250F
• 2015 Yamaha YZ250FX
• 2016 Yamaha YZ250FX
• 2017 Yamaha YZ250FX
• 2018 Yamaha YZ250FX

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.