Cylinder Works Cylinder Kit 50005-K01 — KTM / Husqvarna / Gas Gas 65cc 2009-2023

Cylinder Works Cylinder Kit 50005-K01 — KTM / Husqvarna / Gas Gas 65cc 2009-2023

Product Description

Restore your 2-stroke engine's performance and reliability with the Cylinder Works 50005-K01 Cylinder Kit. Designed specifically for the KTM 65 SX, Husqvarna TC65, and Gas Gas MC 65 platforms, this standard bore cylinder kit is the perfect solution for a fresh top-end rebuild. Each kit arrives "ready-to-install" right out of the box, offering a direct bolt-on fit that requires no machine work, making your rebuild process faster and more efficient.

Cylinder Works utilizes premium Nickel Silicon Carbide plating for superior friction reduction, excellent heat dissipation, and long-term durability. To guarantee peak performance and reduced engine noise, every kit includes a precision-matched Vertex piston, rings, pin, and clips, along with a complete, high-quality gasket set. Proudly made in the USA, this kit provides a factory-identical appearance and performance that young racers and competitive riders depend on.

Top Features: Cylinder Works 50005-K01 Cylinder Kit

• Ready-to-Install: Direct bolt-on design; no re-plating or machine work required.
• Matched Vertex Piston: Includes a precision-engineered Vertex piston kit for maximum longevity and quiet operation.
• Nickel Silicon Carbide Plating: High-performance surface finish ensures durability and consistent power.
• Complete Top-End Solution: Kit arrives with everything needed for a seamless rebuild, including gaskets, piston, rings, and clips.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Sub-Model
2021-2023	Gas Gas	MC 65
2017-2023	Husqvarna	TC65
2013-2014	KTM	65 SXS
2009-2023	KTM	65 SX
2009	KTM	65 XC

Frequently Asked Questions

Q: Does this kit change the displacement of my bike?
A: No, this is a standard bore replacement kit designed to match original specifications (45.00 mm diameter, 65cc displacement).

Q: Do I need to break in the new cylinder?
A: Yes, proper break-in is essential for 2-stroke engines. We recommend completing several heat cycles—allowing the engine to reach operating temperature and cool down fully—before moving to light, variable-load riding for the first hour to ensure the rings seat correctly.

Expert Pro-Tip: When performing a top-end rebuild on these high-revving 65cc engines, always check your power valve assembly for carbon buildup while the cylinder is off. Cleaning the power valve mechanism ensures it operates smoothly, which is critical for maintaining bottom-end power. Additionally, always lubricate the new piston and cylinder walls with a high-quality 2-stroke oil during installation to prevent scoring on the first start.

Recommended Pairings:
o KTM 65 SX Performance Parts & Upgrades
o Husqvarna TC 65 Performance Parts & Upgrades
o Gas Gas MC 65 Performance Parts & Upgrades

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.

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