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Kx250f Big Bore


 - Athena (P400510100004) 83mm 290cc Big Bore Cylinder Kit
Athena (P400510100004) 83mm 290cc Big Bore Cylinder Kit

Fits the following rides Athena's Big Bore kit brings the raw power you have been missing in an easy to install, reliable package that bolts on with no machining needed in most cases, and includes easy-to-follow step-by-step installation instructions. Constructed from aluminum, the cylinder is lined with a nickel-carbide coating for durable, reliable performance, and the water jackets have been widened for a higher flow rate, cooling the cylinder, resulting in less power lost due to heat. Features a forged piston that's been molybdenum coated for high performance use and extended wear life. Includes: big bore cylinder, big bore piston, piston pin, piston pin rings, gasket kit. Note: To achieve optimum performance re-jet the carburetor with the available jet kits. Fits: Kawasaki KX 250 F 2004-2008; Suzuki RM-Z 250 2004-2006.

  • Brand: Athena
  • ASIN: B00IKII0W4
  • UPC: 182682827394
 - Wiseco PK1846 77.00 mm 13.2:1 Compression Motorcycle Piston Kit with Top-End Gasket Kit
Wiseco PK1846 77.00 mm 13.2:1 Compression Motorcycle Piston Kit with Top-End Gasket Kit

Wiseco 77.00 mm 13.2:1 Compression Motorcycle Piston Kit with Top-End Gasket Kit features the highest quality forged pistons for Dirt Bikes, ATV's, Snowmobiles, Outboard Marine and Motorcycles in the USA. Wiseco is unique because all of the pistons are forged in house and all of the forge tooling is produced right here. This allows a control of all aspects of the manufacturing process from raw bar to skirt coating finished parts. In addition, in-house dyno testing gives Wiseco the ability to develop state-of-the-art technology such as new shapes, coatings and components and lead the industry through rigorous research and development. Linking all segments of Wiseco's organization through design, testing, manufacturing and distribution helps to fulfill market needs with minimum lead-times. Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable and will stand up to the abuse that high performance motorsport applications require. Most castings are brittle, have no grain structure and tend to fail catastrophically when the material yield strength is exceeded. Forgings have condensed grain that is aligned to the features of the part, which produces higher mechanical properties and r...

  • Brand: Wiseco
  • ASIN: B0041CCBFA
 - Namura, FX-20033-CK, Size C Forged Piston & Gasket Kit 2017-2019 Kawasaki KX250F Standard Bore 77mm
Namura, FX-20033-CK, Size C Forged Piston & Gasket Kit 2017-2019 Kawasaki KX250F Standard Bore 77mm

Manufactured by NamuraKit includes piston, rings, pin, clips, & top end gasket kit (you get exactly what is pictured)Namura FORGED Series pistonUnique Features: Namura Forged Pistons offer dyno-proven gains in performance and durability over industry standard 4032 forged pistons. Namura's exclusive forged alloy used offers lower expansion rates, allowing for tighter build tolerances and superior tensile strength at operating temperatures. All Namura Forged pistons come with Namura's signature features: 100% CNC-machine piston domes, hard anodized domes for reduced carbon build-up and heat resistance and M0S2 coated skirts for excellent break-in protection and properties.Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended lifePiston dome is anodized for superior heat resistance and longer lifespanNamura gaskets use performance materials to increase durability and provide greater reliabilityIncludes all gaskets pictured to rebuild top endKit is for standard bore size - 77.00mmSize C piston is 76.97mmMade in TaiwanFits:2017 Kawasaki KX250F2018 Kawasaki KX250F2019 Kawasaki KX250 (4-Stroke)

  • Brand: Namura
  • ASIN: B07SBF8RM8
 - 07-09 KAWASAKI KX250F: Wiseco Pro-Lite 4-Stroke Piston (Stock Bore)
07-09 KAWASAKI KX250F: Wiseco Pro-Lite 4-Stroke Piston (Stock Bore)

Tight tolerances for quiet running. Featuring a race-ready dome finish with smooth edges for improved combustion flow. More hours with peak performance between piston changes. The rings, wrist pin, and circlips are manufactured by Wiseco under their stric

  • Brand: Wiseco
  • ASIN: B006VW9RBE
 - Athena (P400250100012) 77mm 250cc Standard Bore Cylinder Kit
Athena (P400250100012) 77mm 250cc Standard Bore Cylinder Kit

Contracted from aluminum, the cylinder is lined with a nickel-carbide coating for durable, reliable performance. Features a forged piston that's been molybdenum coated for high performance use and extended wear life. Premium quality gasket kit meets or exceeds OEM specifications. Includes: Cylinder, piston, piston pin, piston pin rings, gasket kit. Fits: Kawasaki KX 250 F 2009-2010.

  • Brand: Athena
  • ASIN: B00IKII4NE
 - Cylinder Works 31001-K01 Big Bore Cylinder Kit
Cylinder Works 31001-K01 Big Bore Cylinder Kit

Cylinder Works big bore kit increases engine displacement reliably with ease by including a new cylinder machined and plated in the USA, a Vertex big bore piston kit manufactured in Italy, and a top-end gasket kit. Just bolt-on and go.

  • Brand: Cylinder Works
  • ASIN: B001AWNSL0
  • UPC: 182682510036
 - Vertex 24032B Big Bore Piston Kit
Vertex 24032B Big Bore Piston Kit

Forged big bore Piston kit, +3.00mm, Makes 269cc. Includes Piston, rings, pin, & circlips. Used in cylinder works big bore kit 31006-k02.

  • Brand: Vertex
  • ASIN: B00T6JD4EK
  • UPC: 639853710219
 - Piston Kit (A) - Standard Bore 76.96mm 2015 Kawasaki KX250F Offroad Motorcycle
Piston Kit (A) - Standard Bore 76.96mm 2015 Kawasaki KX250F Offroad Motorcycle

Piston Kit (A) - Standard Bore 76.96mm For 2015 Kawasaki KX250F Offroad Motorcycle Excellent economic alternative when you are looking for an OEM quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high quality standardsSleeved cylinder piston kits are available in standard size and a Wide range of oversizesPlated cylinder piston kits come in standard size, as well as in A, B, C and D oversizes if availableProX leads the industry in cast and forged pistons made specifically to replace OEM partsComes complete with pistons, piston rings, wrist pin and circlips *Bore Diameter: 76.96mm ^ Oem #: 014345A ^ Sizing: Standard Bore

  • Brand: RD - Pro X
  • ASIN: B07NCQPT2B
  • UPC: 805931429063
 - Piston Kit (A) - Standard Bore 76.96mm, 13.2:1 Compression For 2011 Kawasaki KX250F Offroad Motorcycle
Piston Kit (A) - Standard Bore 76.96mm, 13.2:1 Compression For 2011 Kawasaki KX250F Offroad Motorcycle

Piston Kit (A) - Standard Bore 76.96mm, 13.2:1 Compression For 2011 Kawasaki KX250F Offroad Motorcycle Excellent economic alternative when you are looking for an OEM quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high quality standardsSleeved cylinder piston kits are available in standard size and a Wide range of oversizesPlated cylinder piston kits come in standard size, as well as in A, B, C and D oversizes if availableProX leads the industry in cast and forged pistons made specifically to replace OEM partsComes complete with pistons, piston rings, wrist pin and circlips *Bore Diameter: 76.96mm ^ Quantity: 1 Kit

  • Brand: RD - Pro X
  • ASIN: B07NCTR93T
  • UPC: 805937887782
 - Wiseco 3110XG Ring Set for 79.00mm Cylinder Bore
Wiseco 3110XG Ring Set for 79.00mm Cylinder Bore

Wiseco 3110XG Ring Set for 79.00 millimeter Cylinder Bore

  • Brand: Wiseco
  • ASIN: B000GVEGR6
  • UPC: 600901126672

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2014 Kawasaki KX270F Bike Build

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Dialed in 2018 Honda CRF250 big bore - is it better than my 450?

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