11 12 Kawasaki KX250F KX 250F 83mm 290cc Athena Big Bore Top Cylinder Piston Kit

11 12 Kawasaki KX250F KX 250F 83mm 290cc Athena Big Bore Top Cylinder Piston Kit

P400250100018,11004-0079,11004-073811004-0079,11004-0738,11005-0586,11061-0357,120CA0625,13001-0714,13001-0730,13008-0028,13002-0030

Unlock Power with the Athena 83mm 290cc Big Bore Top End Cylinder Piston Rebuild Kit for 2011-2012 Kawasaki KX250F

Revitalize your ride with the Athena 83mm 290cc Big Bore Top End Cylinder Piston Rebuild Kit, designed specifically for the 2011-2012 Kawasaki KX250F. Elevate your motorcycle's performance like never before with this top-of-the-line big bore kit, engineered for reliability and maximum power.

Athena Part# P400250100018

Why Choose Athena?

Superior Performance: Athena's 83mm Nikasil-coated big bore cylinder ensures durability and efficient power delivery, taking your KX250F to new heights.
Complete Package: The kit includes everything you need for a successful rebuild—an 83mm coated piston (with pin, rings, and clips) and a complete top end gasket set.
Enhanced Cooling: With larger water jackets, this kit promotes better cooling, ensuring your engine performs at its peak even during prolonged rides.
Easy Compatibility: Designed to work seamlessly with your stock head and valves, ensuring a hassle-free installation.

Experience Peace of Mind: 
All Athena products come with a warranty, so you can ride confidently knowing you have a reliable, high-performance upgrade.

Transform your Kawasaki KX250F into a powerhouse with the Athena 83mm 290cc Big Bore Top End Kit. Whether you're hitting the trails or racing on the track, this kit is your ticket to an exhilarating ride. Order now and unleash the full potential of your bike!

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NOTICE REGARDING PHOTOS: Product photos used in our listings are for example only to show the high quality of our components. You will receive the correct quantity, size, and fitment of bearings, titanium fasteners, nuts, and bolts for the specific kit listed.

BEARING NOTICE: In some cases, you may receive SEALED bearings. If your application requires an OPEN bearing, the seals can easily be removed.

EMISSIONS & RACE USE ONLY: This product is exempt from emission standards and requirements of 40 C.F.R. § 1051 as provided by 40 C.F.R. § 1051.620, and California law [e.g., vehicle code §§ 27156 and 38391]. Sold ONLY for use with EPA-certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing. Installation may void vehicle manufacturers' warranty and/or may be illegal in some locations.

WARRANTY & LIABILITY: © BPRATV LLC 1-year limited warranty from manufacturer for material/workmanship defects.* Due to the nature of high performance and racing, components are sold without express/implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not be liable for specific, incidental, or consequential damages (loss of property, equipment, profits, or revenue) resulting from sale, installation, or use of these parts. This product is NOT DIY; we strongly recommend work be done by a qualified, experienced mechanic.

RETURNS: Returns accepted within 30 days for items 100% complete, brand new, and in original packaging. Items installed or prepped (lubricated/sealed) are ineligible. For warranty consideration, parts MUST be sent back for physical inspection. No exceptions. We do not warranty based on photos, emails, or third-party assessments.

SPECIALTY WARRANTIES: Cub Cylinders: Lifetime warranty for original owner via BPRATV/Millennium Technologies inspection; covers cylinder only. Titanium Fasteners: Failure during use results in replacement only. Neither warranty covers improper tuning, installation, maintenance, or misuse.

INTERCHANGEABLE PARTS: We may substitute parts of equal quality from different manufacturers to prevent backorder delays. Prices and listings subject to change without notice.

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