Namura Top End Kit for KTM 65 SX and 65 XC, 44.98 mm Cylinder, Part Number NX-70002-6CK

The Namura NX-70002-6CK Top End Kit is designed for KTM 65 SX and 65 XC two-stroke motorcycles equipped with a Nikasil-plated cylinder. This complete top-end replacement kit includes a piston, piston rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit for a convenient engine rebuild solution. The 44.98 mm piston size and precise fit help restore compression, performance, and dependable operation.

The piston features Namura’s MOS2 Teflon and molybdenum-coated skirts. This rolled-on coating process creates a durable bond while helping reduce friction, improve heat transfer, and minimize the risk of cold seizures. The machined smooth head helps reflect combustion heat and reduce carbon buildup, while the anodized dome improves heat resistance and durability. A hypereutectic casting process adds silicon for reduced thermal expansion, increased wear resistance, and improved durability under elevated cylinder temperatures.

This Namura top-end kit fits KTM 65 SX models from 2000 through 2008 and the 2008 KTM 65 XC. It is intended for use with compatible Nikasil-plated cylinders and should be installed according to the motorcycle manufacturer’s service procedures. Verify the model year, cylinder condition, and required piston clearance before installation. Manufacturer part number: NX-70002-6CK. Vendor part number: 185-70026C.

Features:

• Complete Top End Kit: Includes piston, rings, wrist pin, clips, top-end bearing, and gasket kit.
• MOS2-Coated Skirts: Rolled-on Teflon and molybdenum coating helps reduce friction, improve heat transfer, and minimize cold-seizure risk.
• Machined Smooth Head: Helps reflect combustion heat and reduce carbon buildup on the piston crown.
• Anodized Dome: Improves heat resistance and durability for demanding engine operation.
• Hypereutectic Casting: Higher silicon content helps reduce expansion, increase wear resistance, and withstand elevated cylinder temperatures.
• KTM Fitment: Fits 2000-2008 KTM 65 SX models and the 2008 KTM 65 XC.
• Piston Size: 44.98 mm piston for compatible Nikasil-plated cylinders.
• Brand: Namura.
• Manufacturer Part Number: NX-70002-6CK.
• Vendor Part Number: 185-70026C.