High Performance 80cc Big Bore Athena Cylinder Wiseco Crankshaft KX65 2006-2026!

Athena 50mm 80cc Big Bore Cylinder Wiseco Crank Complete Engine Rebuild Kit Kawasaki KX65 2006-2026

📖 Product Description

The Athena Wiseco 50mm 80cc Big Bore Complete Engine Rebuild Kit for the Kawasaki KX65 is one of the most powerful and complete motor rebuild packages available. This premium kit combines high-performance components from Athena and Wiseco to rebuild both the top end and bottom end of your engine while increasing displacement to 80cc. The kit features a 50mm Nikasil-plated Athena big bore cylinder, matched piston assembly, upgraded cylinder head, and a Wiseco heavy-duty assembled crankshaft. Designed for riders who want stronger acceleration and improved power delivery, this kit restores reliability while delivering a significant performance upgrade over the stock 65cc configuration.

🔥 Key Features & Benefits

Built specifically for the Kawasaki KX65 two-stroke engine, this complete rebuild kit includes precision matched components engineered for durability and performance. The Athena big bore top end increases displacement to 80cc while the Wiseco crankshaft and bearings strengthen the bottom end for long-lasting reliability under demanding riding conditions.

• Athena 50mm Nikasil plated big bore cylinder increasing engine displacement to 80cc
• Athena forged piston kit including piston, rings, wrist pin and circlips
• Athena performance cylinder head engineered for the 80cc big bore setup
• Wiseco heavy-duty assembled crankshaft with connecting rod installed
• Premium crankshaft bearings manufactured by Koyo or NTN in Japan

📦 Complete Engine Kit Contents

This is a true complete motor rebuild kit including the major internal components required to rebuild the entire engine while upgrading to the Athena 80cc big bore configuration.

• Athena 50mm Nikasil plated big bore cylinder (80cc)
• Athena forged piston assembly with rings, wrist pin and circlips
• Athena performance cylinder head designed for the 80cc big bore kit
• Athena cylinder head stud kit and mounting hardware
• Athena complete top end gasket set
• Wiseco heavy duty assembled crankshaft with connecting rod installed
• Wiseco heavy duty main crankshaft bearings (Koyo or NTN Made in Japan)
• Wiseco heavy duty wrist pin bearing
• Complete bottom end engine gasket kit (Athena or Cometic)
• Complete bottom end oil seal kit for crankshaft and engine case sealing

✅ Compatibility

This Athena 80cc big bore engine rebuild kit is designed for the Kawasaki KX65 two-stroke dirt bike platform and upgrades the engine from the stock 65cc displacement to a high-performance 80cc configuration.

• Fits Kawasaki KX65 2-Stroke Dirt Bikes
• Model Years: 2006 2007 2008 2009 2010
• Model Years: 2011 2012 2013 2014 2015
• Model Years: 2016 2017 2018 2019 2020 2021
• Model Years: 2023 2024 2025 2026

❓ Frequently Asked Questions (FAQ)

• Q: What size big bore is included in this kit?

  A: The Athena cylinder features a 50mm bore which increases engine displacement from the stock 65cc to approximately 80cc.

• Q: Does this kit include both the top end and bottom end parts?

  A: Yes. The kit includes the Athena big bore cylinder, piston kit, cylinder head, gaskets, and the complete Wiseco crankshaft assembly with bearings and seals for a full engine rebuild.

• Q: Is the crankshaft pre-assembled?

  A: Yes. The Wiseco crankshaft comes fully assembled with connecting rod installed and ready for installation.

• Q: Are all components new and covered by warranty?

  A: Yes. All components are brand new and include manufacturer warranty coverage.

🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. We specialize in premium ATV and motocross engine components trusted by riders and builders nationwide. Our kits combine industry leading brands like Athena and Wiseco to deliver reliability and performance you can trust. Trust BPRATV to keep your Kawasaki KX65 running at its best, every single time.

Upgrade your KX65 to a powerful 80cc big bore engine with this Athena & Wiseco complete rebuild kit today!

BPRATV - The Best Parts. The Best Performance. The Best Price.

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© BPRATV LLC 1-year limited warranty from the manufacturer for material or workmanship defects.* Due to the nature of high performance and racing applications, BPRATV LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not, under any circumstances, be liable for any specific, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue(s), cost of purchased or replacement goods, or claims of customers of the purpose, which may arise and/or shall result from sale, installation or use of these parts. Installation of these parts may void vehicle manufacturers warranty coverage and/or may cause the vehicle to be illegal in some locations.

This product is exempt from the emission standards and related 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]. This product is sold only for use in connection with EPA -certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing and not used for any recreational purpose or on public highways or right of ways maintained by and open to the public.