1 1

Cylinder Works

CYLINDER KIT YZF250 01-13, WORKS CYLINDER WORKS 21002-K01, 80mm 270cc WRF250 2001-2013

CYLINDER KIT YZF250 01-13, WORKS CYLINDER WORKS 21002-K01, 80mm 270cc WRF250 2001-2013

£632.55 GBP
£632.55 GBP
Sale Sold out
Taxes included.

The +3mm Big Bore Cylinder Kit (Part Number: 21002-K01) is a high-performance upgrade designed for Yamaha WR250F and YZ250F models from 2001 to 2013. This kit increases engine displacement to 269cc with a 12.5:1 compression ratio, delivering improved power and performance without requiring any additional machine work. It is a direct bolt-on solution, featuring a Nickel Silicon Carbide plated bore for durability and precise honing for easy piston installation.

Features:

  • (+3mm Big Bore Kit) increases displacement to 269cc with a 12.5:1 compression ratio.
  • Direct bolt-on installation with no replating required.
  • Nickel Silicon Carbide plated bore ensures long-lasting performance.
  • Honed to exact specifications for seamless piston installation.
  • Includes all components necessary for installation.

Package Includes:

  • Cylinder
  • Piston
  • Rings
  • Pin
  • Clips
  • Gaskets

Vehicle Compatibility:

  • Yamaha WR250F: 2001–2013
  • Yamaha YZ250F: 2001–2013
  • Yamaha YZ250FSP 50th Anniversary Edition: 2006

Cross-Reference Part Numbers:

  • YAMAHA: 5NL-11311-00-00
  • YAMAHA: 5UL-11311-00-00
  • YAMAHA: 5XC-11311-00-00
  • YAMAHA: 5XC-11311-01-00
  • YAMAHA: 5XC-11311-10-00
View full details