CRF250R 2010-2017 Honda Cylinder, Forged Piston & Top Gasket Kit BIG BORE 270cc

Cylinder Works BIG BORE Cylinder Kits have everything you need to get your cylinder back to stock condition whether you’ve had a catastrophic failure or its time for a more in-depth rebuild. The cylinder features a nickel silicon carbide bore sized identically to OEM specs for incredible wear resistance, exceptional performance, and excellent ring seating.

The Vertex piston included in the kit is forged from high-quality 2618 aluminum alloy using the same great Vertex skirt profiles and anti-friction coatings that form the perfect mating surface between rings, piston, and cylinder wall. Finally, the kit is rounded out with all the gaskets, O-rings, and seals you’ll need to put your top end back together and get back on the track.

  • Includes cylinder, piston kit and gaskets (as pictured)
  • Matched with vertex pistons to ensure longevity, and performance and reduce engine noise
  • Replacement piston, gaskets, and ring sets are available
  • The cylinder looks just like stock (Only you know its NOT)
  • Nickel silicon carbide plated for longer life

SPECS
  • Compression Ratio 13.3:1
  • Cylinder Diameter 80 mm
  • Cylinder Kit Type BIG Bore (+3.2mm)
  • Stock Displacement 250 cc
  • BIG BORE Displacement 270 cc
  • Engine Type 4-Cycle
  • Includes Cylinder, Piston Kit, and a Top-End Gasket Kit
Fits the following models:
  • 2010-2017 Honda CRF250R


Always refer to a repair manual for proper tear-down, assembly, and break-in procedures (if applicable).

Not sure this is right for your ride? Just click the Contact Seller link near the upper right of the page & we'll be happy to help.

Not 100% positive of your model year? (It may NOT be the year built) See the last picture for our VIN# / HIN# decoder chart.

We are based in Imperial Missouri, but your order will ship from one of the multiple warehouses in the USA (Whichever is closest to you).

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