Skip to product information
CYLINDER KIT YZF250 14-18, WORKS CYLINDER 21010-K01 80mm, WRF250 2015-2018 270

CYLINDER KIT YZF250 14-18, WORKS CYLINDER 21010-K01 80mm, WRF250 2015-2018 270

£644.02 GBP
Taxes included.

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